She's just standing there...that's so silly. Then the guy assaults her! What is that? I think he was just proving to himself she wasn't a ghost or something!

They all watched one too many Japanese horror movie.
I would definitely freak out.

what surprised me the most was that like five people walked in the building in like one minutes time where the heck are they that that many people would walk in and not notice any of this

Aw I feel bad for her at the end.

seems kinda fake to me for above mentioned reasons