Don't say anything to him. Don't look at him, don't laugh at anything he says. Ignore him totally. Either he will go away or do something that will get him fired. I've had this happen to me. The guy that gave me the heat was the bosses son and at the final point of contention, he was moved to a permanent part time position at the warehouse 3 blocks away. It was at a furniture store in Washington state just before I moved to Georgia.
Worked like a champ, it did.
