"Looks like we did good on that stealth section. Now we just gotta go and….. WHY DO I HEAR BOSS MUSIC!"

It's shit like this that made the early RE games more frightening.

"Phew, close call, that Mr. X/Nemesis guy is though, better run away, restock on herbs, do some combi-WHY IS HE HERE HOW LARGE IS HIS AGGRO"

So much that whenever a new game came up, we would think, is this game bound by then-current artificial stupidity, or they'll copy Capcom's homework and make the entire level a boss arena?

As jarring as "closing the doors and removing the stairs behind you" was, at least they were honest. A gentleman's fight.