A woman walked into a butcher's shop in Dublin and complained about the lamb chops she had bought there the previous week. "Those chops were six inches long when I bought them, but by the time I'd finished grilling them, they had shrunk to just three inches!" "That's funny," said the butcher. "My wife knitted me a sweater recently, and the first time she washed it, the sleeves shrunk by three inches." "What's your sweater got to do with my lamb chops?" asked the woman indignantly. "Well," said the butcher, "they must have come from the same sheep."