This is the stuff of nightmares. Falling into a crevasse.

I've never felt the pull toward climbing of any kind and i respect those that do. I would be crying for my mother.
Climber Crawls Out of Crevasse on Mount Himlung | News from the Field | OutsideOnline.com

If you haven't seen the movie or read the book, go get Touching the Void. Reading the book is better, but the movie is not too bad ...