A little old lady is walking down the street, dragging two plastic garbage bags with her - one in each hand. There's a hole in one of the bags, and every now and then a $20 bill comes flying out and lands in the street.
Noticing this, a policeman stops her and says "Ma'am, there are $20 bills falling out of that bag!" "Damn!", says the little old lady - "I'd better go back and see if I can still find any of them. Thanks for the warning, officer".
"Well now, not so fast", says the cop....."that's quite a bit of money you've got there - where did it all come from?" "You see", says the old lady, "I live right behind the football stadium. Every time there's a game, a lot of the fans come and pee in my bushes, right onto my flower beds! So I go and stand behind the bushes with a big hedge clipper and when someone sticks his thingie through the bushes, I say "$20 or off it comes!!". "Hey, not a bad idea!", laughs the cop...."OK, you take it easy now. By the way, what's in the other bag?" "Well", said the old lady, "Not all of them pay"................