if that waitress is going to be a professional she should learn to not make comments like that. It shows that a lot of people don't know what they are serving either, let alone what they are eating. Some things I consider gross others consider delicacies.
My son and his wife were in the service industry in New Orleans, started when they were in high school and continued through college and after. They learned that craft but both went back to school and became teachers. They wanted a more stabled environment to raise kids. They wound up taking a pretty big pay cut when they quit the service industry and went to work as teachers but to them it was worth it. The point is that we think of wait staff and such as low-paid amateurs. Many of them are. But if you learn the craft well enough to be able to get the good jobs in the right places you can do pretty well. So before you believe what the wait staff says about your food kind of get an idea of their professionalism.
Red that kind of reminds me of a story about an ex-girlfriend that went on a date to a nice restaurant when I was overseas in the army. She had the fish and had to go to the emergency room later that night. Her family took her, not her date. There was no question what got her sick and that was a "nice" restaurant. I don't know why but your post reminded me of that episode.
My wife's father worked in the health department. Part of his job involved restaurants. He knew the inspection results. There were certain nice popular restaurants that he would never take his family to while some that some people considered dives were OK on his list. You can't tell by looking at the front and eating area what goes on in the kitchen and storage areas.
It's a good life if you don't weaken.