I have spent most of my riding life working to make sure I don't find myself in that position that most often precedes an otb experience but do work on them in case I find I actually need that skill... and they can be fun when you don't crash.
I was hit by a truck (caught a mirror) while riding my fixed road bike this summer and did a nose wheelie down, through, and up the other side of a fairly massive pothole at some serious speed... there weren't any chicks to impress and I was just happy I wasn't killed.