I am constantly baffled and amused by the pickiest of picky eaters. I'm not talking about your garden-variety picky eater, but the extreme, "I don't even look at anything that's not on my approved list of four acceptable food items."
Here is a story, name obscured to protect the innocent:
Today, I bought some pizzas for a group in my office. I did an informal poll to see what people's preferences were and how many people were observing a meatless Friday. We have one super picky eater, I'll call him PE. PE requested cheese only. "I only eat cheese pizza and only from certain places." Fortunately, the place I ordered from was on his approved list. I got a cheese pizza, a veggie, and a "supreme" (bunch of stuff).
PE looked at the supreme pizza on the table and announced, "Just so everyone knows, there's anchovy's on this one!"
Me: "No, there's not."
PE: "Yes there is. Those black, round things."
Me: "Those are olives."
PE: "Whatever. I don't know the difference."
Me: "You really don't know the difference between an olive and an anchovy?"
PE: "I just know that both of them are something that I don't eat."
Me: "You do realize that one grows on a tree and one lives underwater, right?"
PE: "Who cares?"
This is the same guy who once walked three blocks back to a McDonald's to return a plain hamburger because it had a pickle slice on it and he specifically requested "plain". "A pickle touched it. I wont't eat it. I'll walk back and they'll re-make it for me."