If you get a crack in your windshield, you can take your car to an auto-glass repair shop where they will gladly try to repair your windshield, so you can avoid having to replace it. They guarantee their work, too; if the repair is not successful, they will allow you to apply the money you already paid for the unsuccessful repair toward the purchase of a new windshield. Sounds terrific, but how does this strategy relate to the material in the chapter? If all auto-glass repair shops employ this strategy, what impact do you think this has on the price of a new windshield?