A local bar was so sure its bartender was the strongest man around that they offered a $1000 bet that the bartender could squeeze a lemon so dry no one could get another drop out.  Many people tried but no one was ever able to succeed.

One day a puny little man arrived wearing a polyester suit and glasses came in and said, "I'd like to try the bet". 
After the laughter died down, the bartender grabbed the lemon and squeezed it until it was as dry as the desert.

The little man took the wrinkled remains and clenched it in his small fist, the crowd's laughter turned to silence as six drops of juice fell.

"What do you do for a living?" the crowd asked.  "I work for Revenue Canada," the little man replied!