Joe, an old codger, goes to visit his doctor about painful peeing.
His wife goes with him because Joe is a bit hard of hearing.
After an examination the Doctor says to Joe, "Right, I'll need you to leave a urine, semen and feces samples for analysis."
Joe didn't quite hear the Doctor and asks his wife, "What did the Doctor say?"
The wife replies, "He wants you to leave your underpants here, dear."
