I guess it is a little bit of luck with perhaps a bit of "falling" skill involved. But I guess you gotta know you are going to fall. Both times I crashed it was a complete surprise. The first time sheer stupidity -- even though it was a surprise. The second time I don't remember crashing. I woke up in the hospital.
kajero
2013 Trek FX 7.6 WSD
2012 Specialized Ruby WSD
2004 Schwinn (I think that is the year)