There was a dentist, an electrician, a salesperson, and a carpenter that met everyday for breakfast at a low income diner. They were all married except the salesman. When he was married, he went on his honeymoon with his wife. The other three still met for breakfast when he was gone. An idea came up to play some practical jokes on the new married person.

"I'll make his bed slant so his bed will collapse when he is making love," said the carpenter.

"I'll hot wire his mattress so that he'll feel immense heat while making love.'

"Those are good ideas," said the dentist. "But I am not going to tell you what I'm going to do.'

The next day the salesman comes into the diner. He says "I congratulate you guys for making my bed collapse, and I thank you for making my bed really hot, but I'm going to kill the bastard who put novocaine in the Vaseline."