Santa got a job in a supermarket, and one day a man came in and wanted to buy half a grapefruit.
“I don’t think we can sell half a grapefruit,” said Santa, “but I’ll ask my boss.”
He walked over to the boss and said, “Some idiot wants to buy half a grapefruit,” then noticed that the man had followed him over and heard the comment.
“And this fine gentleman,” Santa added, “would like to buy the other half.