An elderly man who's hard of hearing visits the doctor with a mystery disease. His wife accompanies him to the appointment. The doctor examines the old man, but can't determine what the problem is. "We'll need several samples for testing," says the doctor. "We'll need a urine sample, a semen sample, and a stool sample." "WHAT DID HE SAY?" shouted the old man to his wife. "HE WANTS YOUR UNDERWEAR," shouted back his wife.