The self-checkouts are truly obnoxious. They're all fixed at the same (wheelchair appropriate) height, so anyone above 5'0" is going to get a bad back from it. The weight-sensing is like an internet troll; it harasses you for putting an 'unexpected item in the bagging area', it harasses you for not putting an item in the bagging area, it harasses you for looking at it wrong. Then the attendant has to come over and scan their ID because now the red light is on and there is nothing you can do.
Made me laugh! So very true