Squeeze if You Please

A local bar was so sure that its barman was the strongest man in the town that they offered a standing $1000 bet.
The barman would squeeze a lemon until all the juice ran out and challenge any man to squeeze out another drop.
Weightlifters, arm wrestlers; they all tried and
lost the bet.
Then one day, a scrawny little man, (if he stood sideways you would not see him) wearing scratched glasses, a ten year old polyester suit, walked in and said
“I’d like to take on the bet.”
After the laughter had died down, the barman said, “Okay”; grabbed the lemon and squeezed away.
Then he handed the wrinkled remains of the Lemon Rind to the little man.
But the Crowd’s laughter turned to total silence….as the man clenched his little fist around the lemon….
six drops fell into the glass.
As the barman paid the $1000 bet, he asked “What do you do for a living?
Are you a lumberjack, a metal worker,
a weight-lifter, or what?”
The little man quietly replied:
“I work for the IRS .”