this accordion ladder. what does the fire department think about the accordian ladders? >> they got dropped out. it's retroactive. they have to bring them up to today's code. i have a story to tell. when i was in the sunset district. you see a crank on the side, you undue a lever and they are supposed to fall down. we did it, 50 to 75 percent of the time it doesn't work. there's, it's on the owner, the owner is supposed to maintain these ladders and we have a person here who does the maintenance. do you have anything you want to say? >> an escape artist. >> i believe these are supposed to be checked once a year. >> one of my competitors says they need to be checked twice a year. i have encountered those that don't go down because they haven't been checked >> well, after and brush cleaning, and lubrication, we jump up and down on them. i weigh 170 pounds. they don't go down, like we're stretching them. crank them back up. break them free. after we lubricated them. >> what kind of lubrication? if it's a frozen type. we use a penetrable type >> with escape artists, you regu