A fellow's wife was very worried about her husband's heavy drinking and one night she decided to give him a fright. She draped herself in a white sheet and went down to the local cemetery, knowing that her husband was in the habit of taking a shortcut through it on his way home from the pub. It was not long before he came staggering along, and out she jumped from behind a headstone. " Ooooooo! " she wailed, " I am the Devil! " He sticks out his hand…" Put it there, pal, " he says, " I am married to your sister. "