We recently ran a blurb about the kayaker that had to break his own leg to escape a snag where he was about to drown. In this article, he talks about how he used his engineering knowledge to get prevent from entering a watery grave. It reminds me a little story of the Ralston kid that cut off his own arm when it was trapped by a boulder that shifted onto his limb. Don’t know if this is something I could do. Check out the story here!!