Marc and Nancy signed up to participate in a study about the sex lives of married couples.
One of the sex researchers called about a recent survey that seemed to have a bit of a discrepancy. “In response to the question on frequency of intercourse, you answered ‘twice a week’. Is that correct?”
“That’s right,” said Marc.
“But it also says here that your wife, Nancy, is having intercourse several times a night. Is this some kind of mistake?” asked the researcher.
“No, it’s correct,” replied Marc, “and that’s how it’s going to stay until our second mortgage is paid off.”