A temporary office-help agency in Washington DC once offered a $100 bonus to the employee who made the biggest mistake of the month. He doesn't get a reprimand. He doesn't get demoted. He gets a $100 bonus. An executive for a company called Sara Lee Direct thought he was getting a great deal on a shipment of belts, so he acted quickly and bought a whole warehouse full. Only later did he discover that what he bought was not manufacturing belts for the conveyor system at the factory, but a bunch of those three-inch-wide paisley belts from the 1960s. Instead of getting fired, he was awarded a bronze plaque that proudly commemorated th…