I am fortunate or just plain careful, normally when I crashed it was due to radio interference or pilot error (usually hard landing). I religiously check the batteries before each flight and a range check at the start of every outing. I check all connections surfaces and I ask a club officer or Trainer to check out all new aircraft before the maiden flight and generally let one of them take that first flight. This policy has served me well in the past and has severely limited the number of crashed aircraft. The last one was three years ago. I still believe the number of crashes I have are related to the amount of flight time I get. If I haven't flown in sometime my skills aren't always what they were and if I have been flying a lot it’s a case of the laws of averages. I learned proper propeller respect as a lad flying Cox .049s and .020s and I have the finger scars to prove it. I would hate to get hit by a prop of the airplanes I fly now!