This is good stuff...When I was 6, when my family and I went to the cottage, I stepped on a piece of glass and it sliced a 12 cm gash down the bottom of my foot. That hurt, I got one of them Tetanus shots or whatever...We never actually found what I stepped on, though.
But as for stupid stuff, I slammed my finger in a door at the library, (when I was working) and shouted the loudest F-word profanity ever...BTW it was next to the children's section during Storytime, I almost got fired...lol. :D