In a long line of people waiting for a bank teller, one guy suddenly 
started massaging the back of the person in front of him. Surprised, the 
man in front turned and snarled, "Just what the hell you are doing?" 
"Well," said the guy, "you see, I'm a chiropractor and I could see that 
you were tense, so I had to massage your back. Sometimes I just can't help 
practicing my art!" "That's the stupidest thing I've ever heard!" the guy 
replied. "I'm a lawyer. Do ya see me fucking the guy in front of me?"