At Friday night's services, Morris asks his friend Irving.
"I need a favor, I'm sleeping with the Rabbi's wife. Can you hold him in synagogue for an hour after services for me?"
Irving is not very fond of the idea but being Morris' life-long friend, he reluctantly agrees. After services, he strikes up a conversation with the Rabbi, asking him all sorts of stupid questions, just to keep him occupied. After some time the wise Rabbi becomes suspicious and asks, "Irving what are you really up to?"…