Dilbert: I have this conference room booked for a meeting. Alice: This is my private office now. I took it over. Dilbert: You can't just take over a conference room. Alice: I already did. It was easy. Now all I need to do is act as if it would be totally unreasonable to ask me to leave. Dilbert: You need to leave. I have this room reserved. Alice: That's totally unreasonable! I'm all settled in and I'm working on a company-critical deadline! Dilbert: I guess I could cancel my meeting. Alice: Perfect. Now get out of my office.