Three couples want to join a church. They all talk to the Pastor to see what must be done in order to be accepted. He says, You must go without sex for three weeks. Each couple agrees.
Three weeks later all the couples return. Father says to the first couple, "How did you do?"
"Oh, Father," they replied "We did fine. We've been married for twenty years! We're used to be going without sex."
"Very good." says the father, "Welcome to my church."
He then asks the second couple how they did.
"It was kind of hard, Father. We've gone up to two weeks without it, but never three. Somehow we managed though."
"Good, Welcome to my church," he says.
"Well?" he turns to the third couple.
"Oh, Father! We did fine up until this morning! We were at breakfast and my wife bent over to retrieve her napkin and I just had to do her right then and there!"
"I'm sorry" says the pastor, " You are no longer allowed in my church."
"That's okay," says the wife. "We're not allowed at that restaurant anymore either."