Problem: The Thimble Corporation recently distributed rebate coupons for one of its products  Some of the coupons bore an expiration date that was too early  This created an unfair situation in which some customers believed, incorrectly, that the rebate offer had already expired
Principle: Anyone who creates an unfair situation has an obligation to rectify any unfair result of that situation
If a customer believed that the expiration date had passed but applied for the rebate anyway, the Thimble Corporation is not obligated to give a rebate to that customer.