Knowing the Difference Joey married one of a pair of identical twin girls. Less than a year later, he was in court filing for a divorce. ""OK,"" the judge said, ""Tell the court why you want a divorce."" ""Well, your honor,"" Joey started, ""Every once in a while my sister in law would come over for a visit, and because she and my wife are so identical looking, every once in a while 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 is a difference, your honor. That`s why I want the divorce."" he replied.