Can we please do some rewriting?

When coming into a darkened room/warehouse/building or wandering out into a forest away from the relative safety of the cabin/campfire/vehicle and querulously asking “Who’s there?”, has any psychopathic killer in the history of ever said; “It’s me, Michael, I’m lurking over here behind the hydrangea bush with my machete, waiting to kill you” or “Oh, hey it’s me, escaped mental patient, down here under the crawl-space, please come closer so I can grab your ankles.”
Yeah, no. It doesn’t happen.
How ‘bout when someone gets lucky enough to get the drop on the killer? They conk them one on the bean and drop him, then run off without EVER prudently pounding their skull until the solid becomes mush, effectively preventing them from getting up again, or at the very least; disarming said killer. Take away his gun you dumb kid! Sheesh.
Remember 28 days later? How many times did Cillian Murphy holler “Hello” to an empty city? Snap out ot it pretty man. Can you say reconnoiter without giving away your position? Because, seriously. If you woke to a completely empty city, wouldn’t you be spooked enough to just slink along in the shadows until you determined what agency emptied the dang place?
Honestly. Let’s have some scary movies without the elements of ridiculousness.
Am I asking too much here? Any ideas for believable situations or rewrites?