A fellow walked into a store and gave the clerk a $100 bill to purchase a power saw. The clerk ran the bill through a machine to verify that it was not counterfeit. The bill passed, and she put it in a special slot for large bills. When she opened her register drawer to give the man his change, he pulled a gun and demand she give him all the money in the drawer. She did so, and then the man took off, leaving the saw behind. The drawer had $95 in it -- the store made $5 on the whole deal.