I sorta did that. I was at a place with 13 stories, so I set up a chair in the opposite corner from the button panel, and had a clip board with a bunch of check boxes on a piece of paper.
Randomly I would start checking off a box, putting an X through it, or writing down some notes. And randomly making condemning noises and watched the passengers get nervous. I was asked to leave after 20mins by a staff member who was told what I was doing.