When I was a young kid I did the nasty shooting animals with a gun, I'm a vegetarian now
As for stupid shit, when I was about 14 I skipped school and sneaked into a nudist camp LOOOOOOOL that was sooooo funny being thrown out by a couple of old age pensioners
Manufacturing and selling explosives made from weed killer to my schoolmates was non to clever an idea either. (but very easy money)