Funny, the things you overhear. My son and his wife were out to dinner - posh restaurant dinner - at the week-end. Next to them sat a couple, speaking loudly. The man said to the woman: "It's my birthday, and I think the birthday boy should be allowed to choose who he f***s on his birthday!"
There was more to this conversation, and my son said he nearly went over to ask them to keep their voices down. I think that had I been there, I would have been sorely tempted to pour boiling soup into birthday boy's lap, thus scuppering birthday boy's birthday chances.
But then my son is a nicer person than I am.