To be honest the worst things I've ever done I'm ashamed to admit. I was a real slime ball at one point in my life. Still I'll share something one of my friends did which I thought was funny. In college I was staying with a couple of girls I know one of who was my best friend. After a night of drinking my friend and I passed out together while her 2 other supposed friends stayed up talking. Apparently they where talking about my best friend all night essentially trashing her and talking about things they'd done behind her back that she was unaware of. My best friend had woken up unnoticed during their convo. So after they finally went to sleep she got up waking me up in the process and then she proceeded to pee in their shoes. She explained why after she returned to go back to sleep and said they'd just blame the dog. Their dog was a pomeranian and I still remember them exclaiming over and over how the heck did one little dog manage to pee such a huge puddle.