Hmm... i fell doing no handed backwards 360's a couple of weeks back. Lost the balance, didn't have enough time to unclip my foot and grab the handlebars. Before that was a minor incident with a sewer grate in London in Febuary. And about a year ago I got knocked off the road by some soccor mom in an SUV, on her phone, not signalling, who never even noticed she hit me, just kept on going before anyone got her plates.
Three times in a year isn't too bad.... i think. Never had anythign serious really, just a few minor scrapes.