A little morning humor

A little old lady was walking down the street dragging two large plastic garbage bags behind her. One of the bags ripped, and every once in a while a twenty dollar bill fell out onto the sidewalk.
Noticing this, a policeman stopped her and said, “Ma’am, there are twenty dollar bills falling out of your bag.”
“Really? Darn!” 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. “How did you get all that money? You didn’t steal it, did you?”
“Oh, no,” says the little old lady. “You see, my backyard is right next to the football stadium parking lot. On game days a lot of fans come and pee through the fence into my flower garden, so I stand behind the fence with my hedge clippers. Each time some guy sticks his pecker through the fence I say, ‘twenty dollars, or off it comes!’”
“Well, that seems only fair,” laughed the cop. “Okay then. Good luck! Oh, by the way, what’s in the other bag?”
“Well, you know,” said the little old lady, “not everybody pays!”