Too many times I've attended events where you're provided with a hideous over-sized t-shirt to wear. +1. Though in my case, many of them were for charitable causes where there was interaction with underprivileged children. Not the time to show up in an Oxxford suit, Purple Label shirt and tie, with some Lobbs on. Though if one did that, and also lit a cigar with a 100 dollar bill, I would probably die from laughing. You've never pulled the "accidental" slip?? "WHOAH! Well... it's in already, so we might as well just go on."