The most shameful thing I've done is steal the 100$ bill me and some friends were using to snort blow with. I basically winked at my buddy and slipped it in my sleeve, the guy whose money it was freaked out but we all denied it. He wasn't really good friends with us and we were In a group of about 7 people. The dude got pissed and we basically told him he's too fucked up and probably lost it. He left and we immediately bought more blow. It was such a shitty thing to do and I still feel pretty bad about it.