Well, I have a surgical scar just below my left kidney, a smallish one above my right eybrow, and a small incision at my right knee, all to repair what got farked up in a rather awful road-bicycling accident.
The easiest way to summarize is: I prefer to crash on my own, thank you very much. No need to ride into my front wheel when decending a 6% grade at nearly 40mph.