Sometimes disaster strikes. Your put into a difficult situation. In that case your extensive and hard won skill sets and know-how may save you. Or perhaps you have just the right mix of supplies and tools and this pulls you through. And it never hurts to just be lucky.

On the other hand sometimes the key to survival is to avoid doing something really, really stupid:

http://darwinawards.com/darwin/darwin2007.html

So far, I haven't read them all, "Coitus Interruptus" is the best one. I guess the couple knew love was blind but forgot that love can be stupid also.

Be safe, be prepared and ... don't do anything stupid.