I don't know, but it happens; I've seen a lot more forks bent away from the frame that I have the other way, because you usually throw the bike away from you when you're going to nosecase a double.
In related news, I sprocket-cased a five-foot tall, nine-foot long, easy-as-hell double this morning out at the trails, and ended up with a swollen hip, bruised ribs, and a what's probably a low-level concussion. The moral of this story is to remember that you need to carve the berm higher and pump a little harder when the dirt in front of the lip is a bit muddy. Alternatively, remember to always have two lighters at any given time, in case one goes out and you can't spark up a bowl.