Have you noticed, after waiting on a long line at WalStupid that the person in front of you seems surprised that they are expected, long after their order is rung up, to pay? They suddenly look all about them as if someone will rush up and help them and then they hunt for their money or credit card....very slowly, looking at the ceiling or some distant wall. Then they load their cart, slowly, and finally wander off.
The store should have a special aisle, unmanned ....where you load your own cart and wait as long as you want before moving to a lane where you can pay. No charge for looking at the ceiling.
Fred Habacht