Get ready for the oldest trick in the retail handbook: First, insist workers close and lock the doors precisely at closing—not a moment sooner, so that you don't miss any sales. Next, schedule workers' shifts to end precisely at closing time and make it as hard as possible for the workers to claim the inevitable overtime they accrue while trying to complete basic closing tasks that need to be completed after the doors are locked. If they try to claim five or ten minutes daily, just tell them th…