An elderly man and woman are sitting all alone in the rest home when the man says to the woman, “Bet you can’t guess my age.” The woman replies, “Bet I can.” “Bet you can’t.” “Bet I can and I’ll prove it. Unzip your fly.” The man shrugs, but unzips his fly. The woman reaches in, feels around a little, then pulls out her hand. “You’re 83,” she announces. “That’s amazing!” says the man. “How did you know?” “You told me yesterday!”