Less than half are working for some reason, and the ones that are working are all full because everyone is waiting on the one employee to come by and clear the screen because the machine detected a weight discrepancy, or an item was accidentally scanned twice, or they tried to use a coupon, or any of the seemingly 1000 different ways to cause the machine to freeze up and force you to interact with the one employee in the area.
Multiple self-checkout kiosks
Less than half are working for some reason, and the ones that are working are all full because everyone is waiting on the one employee to come by and clear the screen because the machine detected a weight discrepancy, or an item was accidentally scanned twice, or they tried to use a coupon, or any of the seemingly 1000 different ways to cause the machine to freeze up and force you to interact with the one employee in the area.