Years ago there was a similar thread to this on one of the boards. One guy wrote in to say that in "many" (I forgot how many) years of cycling with clipless pedals, he'd never, ever fallen, and he couldn't understand everyone else's problem.

I think the next several dozen messages were all responses either throwing the BS flag at the guy, mocking him mercilessly, or both.

Yes, it happens to everyone..and even after lots of experience a really bad surprise can still tip you over.