when i was around ten i once fell 17 ft backwards off a building head first and landed on a limestone boulder only to have a bump on the head (explains alot you say :D )....as i was falling i stuck out my legs and my ankle got caught on the split (end of the limb) of the branch which took the brunt of my fall so i only dropped around a foot high. it was quick thinking on my behalf that saved my life-i should be dead (x20)....amazingly my two friends who had turned away in horror and started to cry were in shock when they eventually turned around to see me standing rubbing the lump on my head.one of them took it i was dead and never looked....it was funny when he realized i was okay.