Last night the pub had a group of 80 in from a local pot holing club. As we were a bit short staffed for waiting on I ended up filling in. Everyone had pre ordered from our Christmas menu, so it was a case of taking out the food and giving it to the right people.
So anyway, I was taking out the Haddock option, and I had one left over. So I wandered around the tables calling out "Haddock? Who ordered the Haddock?" and after a minute or so a gentleman called out that he thought it was his wife's meal, so I took it over. Bear in mind they all had their order on a piece of paper in front of them (it's amazing how many people don't recall what they have preordered) I asked the guys wife if she had ordered Haddock.
Her: "No, I ordered fish"
Me: "This is the fish, it's Haddock"
Her: "NO! I ordered fish! FISH!!! Not Haddock! I don't want Haddock, I want fish!"
Me: "Haddock is the type of fish we serve ma'am..."
Her: "*incoherent rambling about fish*"
At this point her husband too the plate off me and started to explain that it's what she ordered, it was written down in front of her, and haddock is indeed fish, and she did eat it, but it was a bit of a WTF moment. The group had been drinking before the meal, so I'm guessing that might be it, but she really didn't want to accept that haddock was indeed a fish. (If they had been an older couple I'd have wondered if she was suffering from dementia or something else awful like that, but they were about my age, early 30's)