A man walks into his local butcher's shop and complains about the leg of lamb that he had previously bought, when I cooked it the joint had shrunk so much it went from 12 inches long to only 4-inches. The butcher said to the man that’s funny my wife knitted me a sweater and when she washed it, it was also 4-inches in length, what’s your sweater got to do with my leg of lamb asked the man, the butcher replied well they both must have come from the same sheep.