A dad walks into a market followed by his ten-year-old son. The kid
is spinning a 25-cent piece in the air and catching it between his
teeth. As they walk through the market someone bumps into the boy at
just the wrong moment and the coin goes straight into his mouth and
lodges in his throat. He immediately starts choking and going blue in
the face and Dad starts panicking, shouting and screaming for help.

A middle-aged, fairly unnoticeable man in a gray suit is sitting at a
coffee bar in the market reading his newspaper and sipping a cup of
coffee. At the sound of the commotion, he looks up, puts his coffee
cup down on the saucer, neatly folds his newspaper and places it on
the counter. He gets up from his seat and makes his unhurried way
across the market.

Reaching the boy, the man carefully takes hold of the kid’s balls and
squeezes gently but firmly.

After a few seconds the boy convulses violently and coughs up the
25-cent piece, which the man catches in his free hand.

Releasing the boy, the man hands the coin to the father and walks back
to his seat in the coffee bar without saying a word.

As soon as he is sure that his son has suffered no lasting ill-effects,
the father rushes over to the man and starts effusively thanking him
saying: “I’ve never seen anybody do anything like that before– it was
fantastic — Are you a doctor?”

“Oh, good heavens, no,” the man replies, “I work for the Internal
Revenue Service.”