but found himself flipping out of his kayak into this shark infested water. if someone were to find themselves face-to-face with a shark what can you do to survive? >> well, first of all, i'm going to ask you to restate shark infested water. it's shark inhabited water. sharks don't infest. that's their natural environment. second of all, the point i'd like to make, we classify it this incident as a stupid human trick. eventually evolution will take care of that itself. that said, if you're face-to-face with a shark in the water and it's actually approaching you, pop it on its nose, they have a sensitive nose. they'll most likely veer away, and you can use that extra time to get out of the water. but just remember to hit very accurately because just south of the nose is the mouth. >> wait, did i hear you correctly, tap on its nose? >> yeah. more than a tap.