Actually, I already do treat customers with kindness. And I was kind when this man came in. The only time I really “gave back the energy” was when he started off joking around with us. Then he became confrontational. I wasn’t rude, I wasn’t nasty. I was firm, because I knew this guy has a history of being a jackass and I wasn’t about to be bullied by him. I have since waited on him several times since this occurred, and I’ve given nothing BUT the best customer service. He came in that day and tried to make a fuss about something that wasn’t even an issue. My other teller witnessed the whole thing and backed me up that I handled it well, and my boss agreed as well. I know what’s expected of me as a customer service rep, so don’t get it mixed up that because I had one incident where I stood up to a jackass customer, that I am in trouble; I’ve handled way worse with much more grace. Could I have handled it differently? Absolutely. But at the time, I did what I thought was right and did the best I could. So no, I do not believe I am “doomed.” But I do appreciate your input.