My friend just phoned me up, he and a couple of mates were out urban assaulting today. He jumped a set of 10 stairs and landed well but somehow he said he pulled much more on the front brake than the back and went over the bars, doing a faceplant into a parked car's side. The car nearly got denteed and he just fell to the floor but luckily he's one of those people that actually wear helmets all of the time. He was wearing his Bell Bellistic at the time and he said even though he hit the car with tremendous speed he didn't get hurt at all and the helmet wasn't even scratched. I told him to get the LBS to check if it's cracked anywhere just to be sure.
Anyway, this just proves, wearing a helmet can save your ass.
Pretty funny stuff, the first thing my buddy says when I pick up is "I faceplanted a car!" LOL