Originally Posted by Kacee

I dunno, I can absolutely see a housekeeper who's under pressure to clean a long list of rooms very quickly, who's been told the room is empty, and is not really paying attention to anything except getting in and out as quickly as possible just pushing on the door and not understanding why it seems to be jammed. This would be fully consistent with my experiences where I yell "hello" loudly several times and yet they still push the door open (and appear genuinely surprised to find me in the room).