Golf Fence

A little   old lady was walking down the street dragging two large plastic
  garbage bags behind her. One of the bags was ripped and every once
  in a while a $20 fell out onto the sidewalk.
Noticing this, a policeman stopped her, and said,"Ma'am, there are $20 bills
  falling out of that bag."
"Oh, really? Darn it!" said the   little old lady. "I'd better go back and see if I can find them.
  Thanks for telling me officer."
"Well, now, not so fast,"   said the cop. Where did you get all that money?
You didn't steal   it, did you?"
"Oh, no, no", said the old lady. "You see, my
  back yard is right next to a Golf course. A lot of Golfers come
  and pee through a knot hole in my fence, right into my flower
  garden. It used to really tick me off. Kills the flowers, you
  know. Then I thought, 'why not make the best of it? So, now, I
  stand behind the fence by the knot hole, real quiet, with my hedge
  clippers. Every time some guy sticks his thing through my fence, I
  surprise him, grab hold of it and say, 'O.K., buddy! Give me $20,
  or off it comes.'
"Well, that seems only fair," said the   cop, laughing. "OK.
Good luck! Oh, by the way, what's in the other   bag?"
"Not everybody pays."