This is why I'm glad I don't work in retail. I don't have the personality to deal with people's tit; at least not in person. I guess the most similar thing I had to deal with is when I had to tell students they had fines for late, missing, or broken production equipment. Most of them instead, of just saying okay would launch into a tirade about how they didn't actually have the equipment despite it being clearly checked out twice by staff and themselves. Listen, I don't care, I'm just letting you know so that when you cannot get your diploma because of a $50+ fine, you'll know why.