Help me !!!

One day, at a local buffet, a man suddenly called out, "My son's choking! He swallowed a quarter! Help! Please, anyone! Help!"
A man from a nearby table stood up and announced that he was quite experienced at this sort of thing. He stepped over with almost no look of concern at all, wrapped his arms around the boy's abdomen, and squeezed. Out popped the quarter.
The man then went back to his table as though nothing had happened.
"Thank you! Thank you!" the father cried. "Are you a paramedic?"
"No," replied the man. "I work for the IRS."