When I was 5 or so I fell over in a supermarket and ripped my head open which was nasty had to have a fair few stitches in that one. Then about 2 weeks later I was playing musical bumps at a party and I ran into someone and did it again so had to to get it stiched back up. When I was 9 got run over by a policeman on his way to work and cuto open the other side of my head. Had to get stitches in that too. When I was 17 I got rammed into a metal bin under the combined weight of two guys whose shoe laces had been tied together. That cut open by head underneath my ear. I once got chucked down the stairs in a nightclub by a bouncer which cut the side of my head and then at the same nightclub a few months later some guy punched me and cut open my head over my eyebrow so I had to go and get stitches in it again.
With all of these head injuries its surprising I didn't turn out retarded... oh wait a minute.
But the most painful thing ever was when I was about 13. I was on one of those things on a park which is like a horse mounted on a big spring so you can rock back and forth. I Stoped rocking and stood astride the thing talking to a friend in front of me. He then grabbed hold of it, pulled it right back and released it to allow the head of the horse to spring full force into — well, into where the sun does not shine. I say no more.