Comment by mikestew

All I could think of was Les Nessman from the old television show WKRP in Cincinnati:

"Les believes that as the news director, he should have his own private office, so he puts masking tape on the floor around his desk indicating where his office walls would be. He insists that anyone who approaches his desk must knock at an imaginary door and wait for permission to come in. He mimes opening and closing a door whenever he sits down at or leaves his desk; once he even took out a set of keys to lock the nonexistent door."

https://en.wikipedia.org/wiki/Les_Nessman