^Ba-Dum-Tss!
When I was at school I got hit in the head with a hockey stick. A proper wooden one, square in the middle of my forehead. Bled like a bitch, with a headache to match the next day, but that was about it.
The worst part was that this left me with a scar in the middle of my forehead. Right about the time Harry Potter really took off...

Edit: Bloody ninja raven...