A young man struck up a conversation with a young woman in a singles bar. All went well until he mentioned that he was a dentist, at which point she lost interest.
The next evening, and again the following night, much the same thing happened.
Finally, on the fourth night, the bartender—who had overheard much of what had transpired—took the dentist aside. He explained that the bar was primarily a lawyers' hangout and that most of the women patrons seemed to prefer them.
The dentist took the hint. When he met the next attractive young woman, he told her he was a partner at Babble, Grabble and Scrabble.
She was enthusiastic. Before long, he happily found himself testing the softness of her feather bed.
As he gave way to the delights of the moment, he thought, "Hey, this is great. I've only been a lawyer for an hour and a half and I'm already screwing someone."