On Black Friday, Sears offered free installation on select Kenmore dishwashers in the form of a rebate coupon. The coupon is pretty simple to understand as far as these things go–buy one of the listed models, and Sears will pay for the installation. According to William, however, the listed model that he wanted remained out of stock only for the duration of the coupon. When he asked Sears to honor it the next day, they agreed to–but then after he bought the dishwasher they told him he had broken a nonexistent rule and therefore had voided the coupon. [More]