An Englishman and a Scotsman

An Englishman and a Scotsman were sitting around talking one afternoon over a cold beer. After a while the Scotsman says to the Englishman, "If I was to sneak over to your house and shag your wife while you were off fishing, and she got pregnant and had a baby, would that make us related?" "The Englishman crooked his head sideways for a minute, scratched his head, and squinted his eyes thinking real hard about the question. Finally, he says, "Well, I don't know about being related, but it would make us even."