I probably shouldn't have even said abusive in my post-- it's not actually the operative part. It's sufficient that the customers are frequently wrong. I think

I probably shouldn't have even said abusive in my post-- it's not actually the operative part. It's sufficient that the customers are frequently wrong. I think I'd also say that abusive from the perspective of the recipient isn't a bright line and you'd be hard pressed to find a culture in the developed world where the misguided interactions don't begin to feel somewhat abusive to the recipient after dealing with them day after day. Of course, there is also outright abuse that is tolerated in the US and probably ought not be which only makes the matters worse.