be advances in battery technology make it easier to communicate, travel, and grab a quick nicotine fix, but experts want you but experts wantia to be aware of the dangers. life can turn terrifying in an instant. how would you survive being buried alive? >> like concrete or something, the snow gets packed so tight. >> a city bus barrels down the highway, even ordinary routines can become struggles to stay alive. >> the door is open because he won't stop. >> oh my god! oh my god! >> survival is not a game but you do need a game plan. you've got multiple options but only seconds to choose. what will be your split second decision? every year millions of americans hit the slopes at ski resorts and in the back country

and where there's snow, there's always the chance of an avalanche. this snowboarder sets off an avalanche outside lake tahoe. he manages to stay on top of the snow. others aren't so lucky. true or false. avalanches only happen after a heavy snow. the answer is false. >> the factors that contribute to conditions for an avalanche are going to be a combination of weather, snowfall, slope angle. over a period of time we have different storms that come through. each storm lays down a layer of snow. all of that affects how the snow changes. >> in the swiss alps five friends ski a dangerous run known as the dead swede. with a camera attached to his

helmet, christopher carlson is the last to ski down. >> i started skis down and it was one of the best runs of my life. then all of the sudden i was caught off balance and i started to tumble down the mountainside. >> now, christopher fights to keep his head above the snow but how do you stay on top of an avalanche. a, ski to the left or right and get out of the path, b, stop and curl up in a ball to protect your head and organs or c, move faster and attempt to outrun the flow. >> think of avalanche as water. it's going to flow the same way, just like the kurnlcurrents in river. it's going to pick up and grab stuff. curling up in a ball is not necessarily is best thing to do. >> according to experts, choosing option b is a faster way to get buried. can you outrun it? >> there are very few people on this planet that can ski or snowboard faster than an avalanche.

within 5 seconds it can reach speeds of 80 miles an hour. it can reach a max speed of 200 miles per hour depending on the length of run and how big the avalanche is. >> that makes the only viable option, option a. >> you're going to drop in, make a turn, carry as much speed as possible and head for a ridge line or something because you only have a few seconds before things become out of control. >> it was more like being in a washing machine or something. i was not in control at all. >> christopher is unable to avoid being buried under the snow, and the clock is ticking to find him. >> the biggest cause of death in avalanches is asphyxiation. >> one thing came to mind, just to keep my hands in front of my mouth to create an air pocket.

and i managed to do that. >> experts say most people can survive 15 minutes under the snow but not much more. so what would you do if you're buried in an avalanche. a, lie still and keep quiet? b, shout for your friends so they can immediately identify your location, or c, quickly try to dig yourself out? >> felt like being stuck in concrete or something. >> concrete is a common analogy used by avalanche survivors. that's because the snow is packed so tightly there's no possible way to move. for that reason, cross option c off the list. >> i didn't know if they were able to hear me. the snow gets packed so, so tight. >> option b won't work because even a thin layer of snow will muffle your cries. though it may go against instinct, choose a to conserve what little air you have available.

>> i tried not to think about how much time i got left because then i would only start to panic and hyperventilate. >> up on the surface christopher's friends also know they don't have much time to find him. thankfully they're all wearing electronic transmitters or beacons. they switch their beacons to receive and listen for christopher's signal. within minutes they pick up his signal and start digging. six feet under they find him. >> all of the sudden i could hear their voices. well they dug my face out so i could breathe free air again. that was quite nice. >> our experts have these tips to avoid and survive becoming a victim of an avalanche. stay on marked trails, move left or right towards a ridgeline to

escape the avalanche's path and create an air pocket around your face before the snow stops moving. >> i feel really lucky about being alive, also very grateful to my friends that saved me that day. i wouldn't have been here without them and they know it. >> studies show the average american spends more than two whole years of their life in their cars. but at any moment another vehicle can disrupt that drive. >> when you drive a vehicle it's so important to stay vigilant because you're in control of something that could cause a lot of harm to people if you aren't doing it correctly or safely. >> according to the national highway traffic safety administration, in 2015, u.s. traffic deaths rose over the previous year for the first time in decades. the reason? added driving can raise fatality

rates. and recent job growth and lower gas price mean even more people are on the road. even though progress has been made, fatal accidents can still happen if drivers are distracted, drunk or drowsy or speeding or not wearing a seat belt. even if you're the safest driver in the world, you're not the only one on the road. >> oh my god! oh my god! oh my god! oh my god! >> in detroit, a bus driver admits he starts to nod off with his foot on the gas. as another angle shows, he speeds up just as traffic ahead slows down. jay hammond is driving in the opposing lane and can hardly believe his eyes. >> this bus is going to hit these cars. there's no way around it. i knew that was coming. >> jay is in the black pickup truck and can only watch as it happens.

>> look again. >> the very first car that was stopped basically came airborne and then landed in my lane. >> another car suddenly crashes into your lane. there's only a split second to react. should you a, immediately slam on the brake to decelerate, b, quickly pump your brakes so your tires don't lock up or c, steer into the shoulder or median? >> i start pulling over but there's nowhere to pull over because there's a guardrail and to my left there was a ton of cars. >> option c is off the table for jay.

it might work for you if there's room, but you can't count on it. so that leaves the brakes. but which approach is best? for jay the car jumping into his lane is a wild card. >> at that point i was slowing down and i put my other foot on the brake, i'm standing up with everything i have pushing on the brakes. >> he still hits the vehicle but acts fast enough to minimize the damage. making the best answer a, slam on your brakes. you might have been told to pump your brakes in driver's ed but that information is somewhat outdated. the national traffic safety administration mandated cars made after 2012 come with anti-lock brake systems which do the pumping for you. check your owner's manual if you're not sure. so you've survived the initial accident but you're not out of danger yet.

>> 911 what's your emergency? >> we just had a head-on collision, a bunch of cars. >> how many cars are are involved? >> probably seven. >> seven vehicles. we'll get help on the way, okay. >> after call 911 should you a, stay in your vehicle with your seat belt on, b, exit your vehicle and help others or c, move your vehicle off the road to clear the way for rescuers? >> every situation for an accident is going to be different. obviously it's going to be that person's decision and them looking at the circumstances what's going to be safest for them. >> but one thing the experts say you shouldn't do is try to pull off the road. insurance companies say you shouldn't move your car if you're in an accident with injuries. police need to perform an investigation. in this case, the correct answer is a, stay in your car. >> we all want someone to help or help a loved one if they're involved in an accident. first and foremost if they exit their vehicle and then were to get hit, it's increasing the

people that get injured from the incident. if you're unsure if the situation is safe, stay in your vehicle, leave your seat belt on. wait for the first responders or law enforcement to contact those parties for you or tell you when it's safe to exit your vehicle. >> however sometimes you have to get out of the car. >> if they're near a right shoulder and able to move somewhere safely behind an object that's going to protect them from other vehicles, do so. >> every accident will be unique but experts stand by this advice. steer into the shoulder or median if possible, slam on your brakes, no need to pump, and stay in your car until the situation is safe and only moving off the road if you can do it safely. >> the most important thing you can do is constantly be paying attention, be vigilant. we call accidents accidents because sometimes you can't prevent them.

coming up, caught on security video. a customer struggles with an armed bank robber. >> it was game on and i can't lose this. and later, terror on the tracks. would you risk your life to save another? >> i was like oh my god, which way is this train coming? i lovef the morning ritual around here. people rely on that first cup and i wouldn't want to mess with that. but when (my) back pain got bad, i couldn't sleep. i had trouble getting there on time. then i found aleve pm. aleve pm is the only one to combine a sleep aid plus the 12 hour strength of aleve. for pain relief that can last into the morning. ♪ look up at a new day... hey guys! now i'm back. aleve pm for a better am.

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"thank you for serving our country" and i'm like, that's my dad. male vo: no one deserves a warmer welcome home. that's why we're hiring 10,000 members of the military community by the end of 2017. i'm very proud of him. male vo: comcast. what would you do if you were minding your own business and then suddenly facing down the barrel of a gun? at a virginia gas station the clerk decides to fight back. at this hotel workers choose to run and hide from armed robbers, but the choices aren't always so clear. in long beach, california, cameras are rolling and capture a video of a man in a motorcycle helmet strolling into a bank lobby and he stops next to a customer rich camp. >> i got bumped on my right

shoulder by a guy that said don't f'ing move this is a robbery. i saw that he had a gun sitting about 6 feet away from me. me and the teller both looked at each other. i had a thought in my mind should i do something or shouldn't i. >> with the guy next to him his options are limited. >> if you can run get out. if you can find a hiding place, then hide. >> experts rely on two principles, cover and conceal. >> concealment would be hiding behind something that conceals where you are. a cover would be something like a solid brick wall, something where you know that a bullet couldn't go through. if you get cornered, in a situation where you're vulnerable, you're going to have to fight. >> something tells rich this may be one of those times. >> my senses tell me he wasn't just there to rob the bank. it wasn't calm like i get the

money and get away. there was an edginess to him like he might be distraught, at the end of husband line, suicidal type. >> with the gunman growing more anxious rich decides he may have to take action, but what move next. you're in a public place with a gunman and afraid he's about to turn violent. when should you make your move? a, as soon as you feel afraid and before he has a chance to act? b, just after the first signs of violence? or c, strike when his back is turned? >> we don't know what their intent is. are they there just to rob the place or are they gonna rob the place and then shoot people? >> with that first surge of adrenaline you might feel the need to strike right away, but option a is not advised as a first move. making sudden movements could only force the gunman's hand. >> you should show them you're afraid and you want to cooperate

with them and do what they say and that you're not going to be a problem to their plan. >> at this very moment the teller triggers the silent alarm. it's a direct line to the local police. >> normally a suspect who's robbing a bank wants to get in and out. they don't want the distraction. they want to get their money and leave. >> so he points the gun at me and says get the f up off the ground or you're gonna die. >> what rich doesn't know, the robber is listening to the police scanner inside his helmet so he knows authorities are coming for him. it could explain the sudden change in his behavior as the robber tries to take money from a customer. >> i pulled back. i watched this event happening as they're wrestling for the money. once the guy realizes he has the gun he backs off and gives him the money, but now the money is spilled all over the floor. i sensed he was out of control. he wasn't managing the situation well. >> when the gunman turns back to the teller, rich snaps into

action. in this case the best option is c, strike when his back is turned. >> when the gunman is busy counting the money, making sure the money is in the bag, his eyes are not on you. that's the perfect moment to make your move on him. >> all of a sudden my body just started moving and i'm like i'm doing it. once that was answered, it was game on and i can't lose this. the second i grabbed him, i realized this was a survival thing. >> he made a decision to go and take the gunman down, which is very brave. once you make that choice, you need to be dedicated and devoted to that choice 110%. >> it's a risky decision, but rich is young and physically able to fight, but then he hears the pop of a gun and so do other customers who only now realize what's happening. >> he ended up shooting through his elbow and he pulled the trigger again and that's the one that hit me in the leg and knocked me off of him. as i got knocked off of him i heard click, click, click.

i knew there were no more bullets in the gun and literally the first thing that went through my mind is i'm going to have pizza and beer with my buddies tonight. i'm going to be alive. >> even though rich is shot in the leg, he rolls back on to the gunman and yells for someone to help, but nobody comes. >> unfortunately most people think that everybody will come and help and sometimes maybe that might be the case, but the majority of the time it isn't. >> on his own rich fights for his life and that's when he realizes the assailant is wearing body armor. >> i get him into a full nelson, but i can't lock it out because he has body armor on and a jacket. >> almost 30 seconds later another person jumps in and restrains the shooter's legs. police arrive soon after and secure the bank robber. in addition to being the suspect in eight other bank robberies, officers find more weapons and a

suicide note. once rich hears the news, he knows he made the right decision that day. >> had he just been looking for money and if he was just suicidal, have two bullets, but you have 70 and body armor, two guns and a hunting knife because you want a massacre if you don't get away with it. >> rich may have saved multiple lives by choosing to fight. if you're faced with the same scenario, these are the split second tips that may keep you alive. if the option is available, always run, hide or conceal yourself behind the bullet proof barrier first. cooperate with demands and don't threaten their plans. if you have to fight, strike when their back is turned. >> it was about three weeks afterwards before i went oh my god. i could have died. i believe i saved lives that day and i believe that god does put people in places to do things. >> rich camp risked it all and almost lost everything. his courage was rewarded.

>> my twin boys were born within 20 hours of the shooting one year later. i learned how lucky we are to be here. next up, how far would you go to save another person's life? >> at that point we didn't know if the trains were shut off. and then, would you know how to escape if your ride share driver won't stop the car? >> this driver does not want to take me home. i don't know where he's taking me. coaching means making tough choices. jim! you're in! but when you have high blood pressure

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subways transport millions of commuters every day. on the platform we jockey for position pulling and pushing ourselves dangerously close to the edge. though it's hard to miss, that big yellow strip on most platforms is more than just a visual warning. it's supposed to make you literally feel when you're crossing into the danger zone. >> it's called the truncated dome. it's the first warning that you shouldn't go any closer to the platform. it doesn't matter what kind of shoe you're wearing, leather sole, boots, it's thick enough

that you'll be able to feel it. >> that is unless you're this man who seems to ignore the warning track. you witness someone fall off the train platform. as a bystander what would you do? a, get on your belly, reach down and try to pull the person to safety? b, quickly check for incoming trains, then jump into the pit to rescue him? or c, notify a transit employee. ignoring the danger of a potential inbound train, passengers drop down to help. luckily everyone escapes safely. experts say you should never jump on the tracks making option b a potentially dangerous gamble. >> i cannot recommend that anybody get on the rightaway to try to assist another person. we have one person whose life is in danger already and i cannot recommend that anybody go down there and endanger their lives as well. >> c is the correct answer, notify any station employee. they can stop inbound trains

immediately. >> every platform has an emergency call button. push the button and someone is on the other side of that and says, what is your emergency. you tell them someone has fallen on the track. >> here in boston's north station the warning strip has no effect on this man. he walks right off the platform and is knocked unconscious. in this case, subway worker a.j. hears bystander's cries and runs over to investigate. >> we just heard a woman screaming. a woman and man came running down the track like this, there's a guy that fell on the train tracks. there's a guy that fell on the train tracks. at that point we hadn't seen the inspector come down yet so we didn't know if the trains were shut off. >> there's another danger and it's every bit as deadly as any inbound train. >> i think a lot of us understand a term a third rail,

we've heard it certainly, but maybe we didn't understand what it is. the third rail on a subway is a bar through which electricity passes and that is the electricity that powers the train motor. on a subway the third rail is next to the two rails that the train is going to ride on. >> a.j.'s partner joins him on the tracks, even though just one move in the wrong direction could mean a lethal shock from the third rail. >> my main concern was our safety first. just don't get too close to him. he was pretty close to the third rail. if he had fell six inches more to his left he would be dead. >> two women rush in and offer to help increasing the number of people now in danger on the tracks. >> which way is the train coming? i forget which way. i know that one side has a light if you look down, and i knew this when i was a kid, if you see the light on, that means there's no trains coming. the first way i looked i looked down and couldn't see the light and i was like oh my god and i was like am i looking in the

wrong direction. which way is this train coming? >> true or false, some train stations have an emergency alcove where you can escape the path of an inbound train? the answer is true. >> on a subway platform, there's a refuge area below the platform. you can't see it from above. it's a 30 x 30 inch alcove for the event a person is in the right of way. >> some transit systems have alcoves in the wall, but don't assume your station has one. call the transit authority or check the website for specifics. together the rescuers contemplate their next safest move. >> we didn't know if he broke his neck. that was another concern. we got to move him, but we had to get him off the train tracks and that was the number one concern. >> this small group of rescuers band together and hoist the man to safety. a.j. knows he took risks to save

him, but he also says he'd do it again. >> i couldn't live with myself if i let something happen to somebody and i could have made a difference. >> they made a decision on the spur of the moment that turned out very well and we're all thankful for that. >> even though everything turned out for the best this time, remember the following split second tips if you're called into action on the subway, notify any station employee. they can stop inbound trains. if you decide to jump down, look for the emergency alcove found in some transit systems. never touch the third rail. and if it appears the victim has sustained injuries, make sure to alert the station employees for assistance. >> i would have jumped down for anybody, you know what i mean, because i would hope somebody would do that for me. you don't go to work thinking i'm going to jump down on the train tracks today and save some guy. it sounds cliche, but you do

what you're supposed to do. i guess nowadays that's a hero. coming up, a brazen attempted kidnapping in broad d daylight. >> a bite from a deadly cobra. make the wrong decision and you could be dead in an hour. ugh. heartburn. sorry ma'am. no burning here. try alka-seltzer heartburn relief gummies. they don't taste chalky and work fast. mmmm. incredible. can i try? she doesn't have heartburn. alka-seltzer heartburn relief gummies.

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i'm dara brown with the top stories. officials in oakland say about two dozen people are still unaccounted for following a warehouse fire friday night. nine bodies have been recovered from the building. search crews plan to work overnight to recover the victims who are unaccounted for. >> in massachusetts, firefighters battle a 10-alarm fire that destroyed eight structures including a church. now back to "lockup." it can happen anywhere at any moment. the kids are out playing when suddenly one of them gets

snatched. this one caught on building security video. true or false, a majority of child abductions are committed by complete strangers? the answer is false. fewer than 100 of nearly 460,000 reported missing children in 2015 were kidnapped by strangers. >> most child abductions, they're usually a family member where there's a child custody issue of that nature or something like that. when you have a stranger child abduction, it always seems to be a lot more serious because there seems to be more intent to do harm to a child abducted by a stranger. >> july 2016, in a victorville, california cell phone store, a mother walks in with her infant and 4-year-old daughter. then as the 4-year-old lingers

by the door, it happens. >> the guy happened to be walking by and just snatched her so fast. >> so fast customer terrance bradshaw barely has a chance to react. >> i heard the mother yell get away from my child, don't you touch her. it took me a second to realize what was going on. >> now put yourself in his place. you've just witnessed a complete stranger try to kidnap someone's child. besides calling 911, what's your next best move? a, physically attack the kidnapper to get him to let go? b, get in your car and follow the kidnapper so you can give his location to police? or c, scream, yell and draw attention to the situation? >> he was about 6'2", 6'3", 250 pounds. he was a heavyset man. if i were to engage him, i

probably would have ended up hurt. >> option a is a risky decision, but what about starting your own civilian pursuit? >> i think following a suspect might be a consideration, but it's obviously a pretty dangerous move following somebody in a vehicle. >> the smartest most effective decision in this case is scream, holler and make a commotion that will attract help. >> just getting the more people and more witnesses to see what the guy looked like, the better. >> the screams of the mother is what got me to turn around. her screaming caused me to yell. me yelling caused the neighbors and everybody to run up to this. >> because of all the attention caused by the screaming, the kidnapper drops the little girl and runs away. but every case is different. hernando, florida, june 2016.

a mother shops with her 13-year-old daughter when suddenly, while security cameras record video, a brazen man grabs the girl and tries to drag her out of the store. her quick thinking mom grabs her and won't let go. >> it is amazing to me that he would even have continued this attempted act of kidnapping even though all that was going on, stuff getting knocked down. it's just surprising that he was so resilient in his actions to try and kidnap this 13-year-old. >> true or false, during an attempted abduction it's more effective to throw yourself on top of the child than to grab hold of the kidnapper? the answer is true. >> by holding on to her own daughter, i think she did the right thing. instead of trying to grab the suspect, she held on to the daughter. the suspect is not going to able to be drag them both out of the store and they probably created a big commotion. >> if you give advice to your child about what to do if a

stranger grabs them like we see happen in this store video, experts say a child should do everything they can to fight back and fight dirty. >> if i was a child and i was grabbed by a stranger that i didn't know, i would do whatever i could to get away. if you're a child and you're watching, you want to kick and scream and make as much noise as possible. fight, bite, do whatever you can. do whatever you can to get away. don't go -- don't go quietly. >> though child abductions by strangers are extremely rare, experts suggest you always stay alert and remember these split second tips. bystanders should yell and scream for help. a kidnapped child should immediately fight dirty, bite, kick, punch and scratch. if you're a parent or bystander, push the child to the ground and hold on tight. >> the mother screaming and her fast action definitely is what

saved her child. >> if somebody's being abducted, some child's being abducted, i think as americans and citizens, we have an obligation to try and help in any way we can. next, every second counts. when one of the world's deadliest snakes bites. >> they'll probably end up going into respiratory failure pretty quick. then you just got into the wrong rideshare. >> i need to get home. what are you doing? dude, are you serious? almost anything. even a rodent ride-along. [dad] alright, buddy, don't forget anything! [kid] i won't, dad... [captain rod] happy tuesday morning! captain rod here. it's pretty hairy out on the interstate.traffic is literally crawling, but there is some movement on the eastside overpass. getting word of another collision. [burke] it happened. december 14th, 2015. and we covered it. talk to farmers. we know a thing or two because we've seen a thing or two. ♪ we are farmers. bum-pa-dum, bum-bum-bum-bum ♪

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strike. in the u.s. alone, venomous snakes bite more than 8,000 people each year. david weathers is a professional snake handler and knows the danger all too well. >> when you handle the snake, you try to have somebody around. >> he keeps dozens of snakes including that venomous cobra, native to southeast asia. it is considered one of the deadliest snakes in the world. david is about to find out why. as he prepares to move the cobra to a new sanctuary, it strikes. >> i literally pulled the whole snake out of the tub attached to my stomach and i felt the teeth sink into me. >> david knows there's no time to spare and has a friend drive him to the hospital rather than wait for an ambulance. >> get me there quick because i'm having a bad head stuffed up and i'm having problems breathing. >> it really depends on how much

venom got into your blood stream. you don't have a lot of time. and it also depends on your metabolic state, how you react. >> how would you react? you've just been bitten by one of the deadliest snakes in the world and you're headed to the hospital. what should your next stop be? a, apply a tourniquet and stop the flow of venom to your heart. b, move as little as possible and try to relax, or c, cut the wound and suck or drain the venom. >> a lot of people have this idea if you get bit you need to cut the wound and suck the venom out. john wayne style thing. you would have to cut that thing open, cut it deep enough to be at the bottom where the fangs stopped, because that's where the venom starts. i just whacked four veins so i'm dead. i'm bleeding to death, you know what i mean? >> c is the wrong answer. the venom can kill in as little as 60 minutes depending on the factors like the amount of venom delivered, the size of the

person and metabolism. stopping the flow of poison to your heart may seem like the right idea. >> using tourniquets may be appropriate in certain instances depending on the nature of the bite, the species involved. >> but be careful because while you may be blocking the flow of venom you're also cutting off blood flow to your limb which could lead to irreversible tissue damage and amputation. for david that's not an option since there's no tourniquet for the stomach. >> the thing that got me mentally traumatized the most is knowing where i got bit and how close it was to a lot of my vitals. everybody's like you got bit in the stomach? i'm like yeah. >> still david knows the correct answer is b, relax and try to stay calm. >> you want to stay calm because you're going to just increase your blood pressure and increase the systemic movement of the venom within the blood stream.

>> i'm going to be okay if i don't get exited. if you start getting excited the heart beats faster and the venom reacts faster. you die quicker. >> as the venom spreads and the traffic slows, staying calm is becoming harder to do. >> i'm starting to get nervous. i'm going all right get me to the hospital. we're running red lights and things. >> we got to get by this [ bleep ] man. we got to get by [ bleep ]. >> if you're bitten by a cobra, it's serious business. >> you notice underneath the bite, there's a scratch where he went for a second bite. there's a fang mark there and a scratch here. that's where he held on. there's localized venom starting to go through my system. i'm having trouble breathing. >> i think i was feeling swelling. it was really tight and it felt like somebody jabbing a knife in in me and then left it there and then every once in a while, gave it a twist. >> i'm probably going to end up going in respiratory failure pretty quick. >> true or false, hospitals can treat most snake bites with antibiotics. the answer is false.

there's only one cure. >> the only treatment for snake venom to counteract snake venom would be the antivenom. >> each venomous snake has its own unique antivenom and doctors can't give the right treatment if they don't know the type of snake. however, if you just suffered a venomous snake bite, don't lean in for a closer look. >> it's dangerous to handle the snake afterwards. you're more likely to get bit again. the focus is getting medical care immediately, but if you can identify the snake with a cell phone photo that would be ideal. >> david knows what snake bit him, but cobras aren't native to the u.s. and his local hospital doesn't have the anti-venom on hand. by the time it arrives five hours later he's not sure he wants it anymore. >> nothing's gotten worse. it's not getting better, but the

swelling is staying where it was. i'm going to try to release myself out of the hospital and go home at this moment. >> as a professional snake handler he hesitates knowing the antivenom becomes less effective each time it's administered to the same person, but experts always recommend taking the antivenom. >> so the antivenom guy says, listen, they're not telling you everything, but you're in preliminary renal failure right now, your kidneys aren't functioning. if you don't get this you're going to die. this is coming from a friend of mine. i said let's get this rolling. i need it. let's do that. >> even with the antivenom it takes david months to fully recover, but he knows he's lucky to be alive. if you ever find yourself facing the fangs of a venomous snake the following tips may help you survive. identify the snake. if you can do so safely. get to the hospital immediately. relax and slow your heartbeat and take the antivenom.

>> i do remember vividly when it happened like telling myself, what am i gonna do. how am i even alive? this thing could have done so much more damage. coming up -- >> this door is still open because i'm trying to get out and he won't stop. a rideshare driver holds you hostage. can you make it out alive? ♪ i want a hippopotamus for christmas ♪ ♪ only a hippopotamus will do at the united states postal service, we deliver more online purchases to homes than anyone else in the country. and more hippopotamuses, too. ♪ so whatever your holiday priority, our priority is you. i'...marvel studios.and i'm an executive producer at... if my office becomes a plane or an airport the... ...surface pro's perfect. fast and portable but also light. you don't do this 14 hours a day, 7 days a week...

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mother always said don't get into cars were strangers. today millions of people do just that, using a variety of rideshare apps. it takes the trust of both rider and driver to make it work, and usually it does. but what happens when a ride share goes wrong? in february 2016, washington, d.c. resident desiree taylor hails a ride share service with a friend to get home from a downtown bar. but when she asked the driver to make a separate stop to drop off her friend, the driver refuses

and things turn tense, especially once desiree's friend gets out to calm the situation and decides to walk home. >> after he gets out of the car, i expressed my feelings towards the driver and said what he did was unprofessional and that we were going to write a bad review on him. at that point he seemed to get more flustered and more upset. >> the driver tried to kick desiree out. but since it's late in a dangerous neighborhood, she says no and starts filming the encounter. >> you're kicking me out because of what? as i'm filming, he's making this violent u-turn. do you not want to say that you're taking me to my destination? are you [ bleep ] serious? my heart dropped. you're driving somewhere else. what are you doing? >> it's not clear if the driver is not answering in an effort to avoid arguing, but desiree is disturbed by the silent treatment. >> he tuned her out and he

exhibited that silent rage. this is the most dangerous kind of rage. >> and now you're getting taken for a ride. if you're being held against your will by a runaway rideshare driver, first dial 911. >> just him hearing that she's on the phone with 911 and describing what the vehicle is to the 911 operator, hopefully it would scare him enough. even if you were on hold with 911, you could pretend that you're talking to the operator and say i've just been abducted, i'm in this car. >> but after calling 911, what's the next best action you can take? a, watch for the car to drop below 30 miles per hour, then jump out and roll. b, open a door to signal to other drivers you need help. c, text family and friends for help and activate the share your location app on your cell phone. >> trying to jump out of a moving vehicle is extremely dangerous in all situations. >> at this point in the ride.

option a is out. what about keeping a door open? >> the door is open because he won't stop. >> keeping the doors open, probably not the safest thing to have the doors wide open. he could go around a turn and you could fall out. >> not even in the right direction of where we're supposed to be going. this door is still open because i'm trying to get out and he won't stop. >> there's only one safest bet here. >> if you have a friend you could text, a lot of the smartphones, could you drop a pin saying help me, i'm being abducted, it's going to show you on the corner of third and broadway, wherever you may be. >> after calling 911, option c is the correct answer. there's another critical action you can take. >> keeping the window down so you have an avenue of escape is really important in that situation. >> i need to get home. >> panic begins to set in as desiree is stuck with a grim, silent driver who is weaving and speeding around the city.

>> you're driving somewhere else. what are you doing? >> i don't know if he was going to drop me far from my house or to get back at me. i don't know he was going to take me to an empty parking lot and, god forbid, do something to me. dude, are you serious? >> when you find yourself in a situation like this, the calmer you can be, the better. >> this driver does not want to take me home. he should have taken me to my house. i don't know what he's going to take me. >> to desiree, it feels like an abduction. what would you do? you've called 911, your friends and family are aware of your location, but your driver is increasingly erratic and you're in fear for your life. should you, a, jump out the second the driver stops. b, physically attack the driver or grab the keys to start the car. c, engage the driver calmly and keep filming his actions? >> i couldn't reach around to try and put the car in park, i couldn't reach around to grab

the keys. who knows what he would have done. >> disturbing the driver's ability to drive the car is probably not a great idea. that could cause a rollover crash or any kind of accident. >> option b only puts you at more risk. so maybe talking the driver down while you keep recording is the way to go. >> i don't know if that will be an option for you. you could make it more volatile. >> this is the driver you don't want because the driver is taking me somewhere else. i have no idea where he's taking me. >> perhaps me recording it did escalate the situation a little more. >> for this passenger it's clear. there's no engaging the driver. there's one decision left. >> after two and a half minutes of being stuck in this car. stop. here's a stop sign. let's see if he'll stop and let me out. there was a very major intersection we were getting to. a very high-traffic

intersection. my split-second decision, the moment i felt the car stop at the stop sign, i got out. >> since desiree is recording while in the car, she calls police when she gets out. [ bleep ] but desiree said the police declined to take action. saying the incident is not an abduction but a misunderstanding over a service. desiree does send her video to the ride share company and they fire the driver. although most rideshares work out fine, it's important to be aware. remember the following split-second tips. call 911, pin and share your location on your cell phone, don't try to physically interfere with the driver. keep a nearby window open and exit the vehicle the moment the car stops. >> just reliving that scary situation is tough. just thinking that it could have gone completely wrong -- i'm tearing up. i'm sorry. you just never know.

just looking back at it is scary. i'm just thankful that i'm here and i'm thankful that nothing worse came from it . battle of the bands. let's play "hardball." good evening. i'm chris matthews in washington. it's been nearly a month since the election, but for many, it's clear there's more than a little bitterness. last night, donald trump held a thank you rally in cincinnati amid chanlts of "lock her up" from the crowd. trump reminisced how fun it was battling hillary clinton. >> i'm going to discuss our action plan to make america great again. we're going to discuss it. although we did have a lot of fun fighting hillary, didn't we?