While in line at the bank, one guy suddenly starts massaging the shoulders of the person in front of him. Surprised, the man in front turns and snarls, "Just what the hell are you doing?" "Well," says the guy, "I'm a chiropractor and I saw 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 replies. "I work for the IRS. Do you see me screwing the guy in front of me?"