There was a man and a woman in an old folks home. The man says to the woman, I bet you can't guess what age I am. The woman says I'll give it ago, but first pull down your pants, the man pulls down his , then the woman says pull down your underpants, so the man does. The she taps around down there and she says you're 97. The man asks, how do you know that? The woman answers, because you told me yesterday