How Do I Complain-Splain This To You?

I am talking about previous work experience with a new coworker.

Coworker: “What is the most ridiculous customer complaint you’ve gotten?”

Me: “A customer tried to get me fired because her salad portion was too small.”

Coworker: “Well, boo her for trying to get you fired, but complaining about a small portion isn’t that bad.”

Me: “It was a self-service buffet place.”

Coworker: “I take that back. You win!”