I used to think it was just me, but after hearing a chef on TV mention it in passing, I looked it up, and yes, some people get the fishy smell/taste. Others don’t notice it. I sure do.
Well, that may be a reference to the old McDLT, which was sort of like a Quarter-Pounder, but with a whole leaf of iceberg lettuce and a slice of tomato, served in a special two-sided container, with the burger on one side and the veg (and top bun, I think) on the other. Their slogan was something like “Keep the hot side hot, and the cool side cool.”
Then there was the Archburger, which was a QP on a Kaiser roll, with a horseradish-type sauce on it, and it was marketed as a burger “for the adults.”
And let’s not forget the McPizza…how long did that last?