One day an old man and his wife were sitting in the waiting room of the old
man's urologist. The nurse stepped in, holding three specimen jars in her
hand. She said "Mr. Johnson, we're going to need a urine sample, a semen
sample and a stool sample." Fiddling with the volume control on his hearing
aid, Mr. Johnson asked his wife, "WHAT DID SHE SAY, MARTHA?" "They want
your shorts, dear."