In reply to birbeck:
I hope everyone is ok and your mate gets his/her fleece back!
Can I ask what caused the accident? I replaced a few of the lower offs at Horsethief last December so cast a quick eye over the bolts as I climbed up. If it was a fixed gear problem though, I can let various relevant people know.
If it was user error - bad luck, it can happen to anyone. Hope everyone is well on their way to healing and getting over it.