I had an irritable cashier at Publix a few weeks ago and I called CS about it later. I was glad I did. The manager was so sympathetic and apologetic. I vaguely described the cashier (didn't want to get her in trouble because I knew she would know it was me who complained) and asked if the manager could hold some kind of brief group cashier meeting and discuss the use of coupons and how customers using coupons should be treated - not as thiefs or 2nd class citizens. I now avoid this cashier and all the other cashiers are wonderful about my coupons. I would call CS if I were you, just so they can do some training.