from neutrogena sick, huh? i'm good. i just took new mucinex clear and cool.hat's this sudden cooooling thing happening? it's got a menthol burst. you can feel it right away. new mucinex clear & cool. feel the menthol burst. while powerful medicine clears your worst cold symptoms. let's end this. aptioning provided by -- allegra-d®. a maximuth decongestant try allegra-d®. >>> we're going to show what has made me very skeptical of escalators. >> i understand why. >> here you see this senior man going up the escalator. when suddenly -- >> no! no! >> oh, it's going to be the eternal fall. >> dude somebody help him! >> that's exactly what starts to happen, he starts to wa stutter-steps and then cahe ride all the way up yet? >> no back down. >> just when you think he may have been steady he comes rolling back down. >> there you go. finally somebody hits the button. he had to r medical attention and suffered a head injury. >> help, i've fallen and i can't stop! >>> well, the next senior citizens can't stop either. there's four of them, also in china. now you can see