No, I don't. This thread is about weird food rules. Not nearly the same as my being a stickler for proper cooking technique, non-gimmicky food trends, and dislike of foods loaded with sugar/fat. For example, I don't really like bacon in desserts, but I get why it's done and don't have a specific "no bacon must touch any dessert item ever" rule. This isn't about what you like or prefer, it's about things you must have a specific way, or things you always do for a reason that really only makes sense to you, or for no real reason at all (hence the "weird").
No fish and cheese is a standard food "rule". Nothing weird about it.