A man married a woman who had an identical twin, but less than a year later he was in court, filing for a divorce. The judge said, "Tell the court why you want a divorce."
"Well, Your Honor," the man said, "every once in a while my sister in law would come over for a visit, and because she and my wife look so similar, I'd end up making love to her by mistake."
"Surely there must be some difference between the two women," the judge said.
"You'd better believe there's a difference," the man said. "That's why I want a divorce."
