I worked in retail for a time, in management, and I always used to teach my staff, some 60 of them, that the customer was not always right, but they were always the customer.
It reminded them who payed their wages and I believe we had a much better percentage of great service because of it, and far less situations in which I had to involve myself.
Of course, customers are assholes generally and do not know how to treat retail staff well. Last year the government here actually had an advertising campaign to educate customers to treat retail staff better...Fancy that, customers having to be told to have respect and courtesy. good indication of the decline of both these traits in society.
Probably didn't work.
A good post mate. Nice work.