After two years of marriage, Tom was still questioning his wife about her lurid past.
"C'mon, tell me," Tom asked for the thousandth time, "how many men have you been with?"
"Baby, " she protested, "If I told you, you'd throw a fit."
Tom promised he wouldn't get angry, and convinced his wife to tell him.
"Okay," she said, then started to count on her fingers, "One, two, three, four, five, six, seven - then there's you - nine, ten, eleven, twelve, thirteen.....”