Hey Pandas In Customer Service, What's One Event That Occurred With A Rude Customer That You Will Remember For A Long While?

Service manager at a credit union, customer is chewing one of my people a new one because he was overdrawn. Totally demoralizing her. I came over to intervene and he started in on me. I said sternly "Listen Richard". My name's not Richard. "Oh I'm sorry. D**k.'