I'm going to treat cashiers like they're stupid to avoid getting the wrong change
Why do you wanna treat cashiers like that?
I think about not wanting to deal with these cashiers having to see them as human beings who don't deserve it. That's why I treat them like stupid robots
It can be tough to deal with service people but you still have to treat them like humans. It would be wrong to treat them badly and they can refuse you service.
People working retail jobs should count themselves lucky to have a job.
Granted you got a bad service from some cashiers doesn't mean all cashiers are stupid. They're as human as you are. You need change your perspective and stop treating them like robots.