I’m researching a story on skiing at the moment, and came across this video of Corbet’s Couloir in North America on youtube. This is a crevice beloved by lunatics as it appears to be bottomless until the point where you jump off it. What I want to know is who figured that out for the first time? It’s not related to my subject matter directly, but holy crap, check this out:
You’d have to be totally insane to do this. It’s like watching some kind of human/lemming cross breeding experiment. I’ve been skiing exactly once and was shocked at just how dangerous standing still on a flat surface is, let alone jumping off cliffs. Insane.
alexmeehan.com 
That’s nuts. I worked in Alaska with a woman whose husband was an extreme skier, and he did crazy shite like that all the time–had the injuries to go along with it too.
Adrenaline… I know a little about that.