am I the only one that doesn't find these weird?
the only ones that seem off to me are the bananas in ketchup, the now n laters in vinegar, and the jelly on tuna.
The rest kinda make sense to me.
I wouldn't eat ketchup on eggs, but I can see why people do it.
frankly I think the whole purpose for ketchup is to just cover the flavor of things. People love the taste of ketchup, but it's not filling to eat just that, so why not pour it on whatever they're eating at the time.

That kinda goes along with my theory as to why people love lobster so much. I'm convinced they truly just love butter, and the lobster gives them a reason to eat a ton of it at once.