What do you call a guy who knocks 4 times and comes in late?

A drummer
~Submitted by Alex Clow

An amateur drummer died and went to heaven. He was waiting outside the pearly gates when he heard the most incredible fast and furious drumming coming from within. Immediately he recognized the playing and rushed to ask St. Peter if that was Buddy Rich playing drums inside the gates. St. Peter responded: "No, that's God. He just thinks he's Buddy Rich."