The following is a true story as I was there. About five years ago I was at a Seattle area car show with some friends, all of us from the Spokane area. One of them transacted a sale for his Corvette at the show. The buyer, who was there with his girl friend, left a cash deposit and then came back about two hours later with a cashier's check from Washington Trust Bank for the full amount, so of course he got his deposit back.
On the way to his house the idiot buyer gets into a big fight with his girl friend. She comes back to the car show and informs my friend that the cashier's check is a forgery. My friend calls the bank and they confirmed the check was no good. He then calls the cops who go to the buyer's house arrest him, and called my friend to come pick up is car.
Girl friend got a reward and a free dinner compliments of my friend.