The cleaner at work, every morning, barges into my private office without knocking and it's really starting to annoy me. She's just done it now. I have asked her to knock before coming in, she says yes yes and she does it again the next day.
She doesn't even come in slowly, she literally barges in and sometimes makes me jump if I'm occupied with something.
Everybody knocks on each others office doors at work. Even my boss would knock and wait for a response before coming in.
AIBU to be annoyed by this?