A woman was riding in a taxi cab.  When the driver got to her destination, she told the driver that she had no money on her.  So he made a sharp U-turn, drove the other way for 15 minutes, then turned onto a rural dirt road.  He stopped at a clearing in the middle of a forest.  Then he got out of the car, took a dirty sheet out of the trunk, and laid it down on the ground.  The woman yelled in shock: "This is wrong!  I'm a married woman!  You can't do that to me just because I  can't pay!"  The driver told her: "Look, lady.  My main job is rabbit farming.  Since you can't pay me, I can't buy rabbit food.  Now, start picking grass and throwing it onto the sheet."