Janus: In Ancient Rome, a slave guard posted at the entrance to a building would be called a janitor. Named after Janus, god of transitions, these people were chained to the door. Their bodies filtered the transition from inside to outside of empire, as they stood in the liminal place between. Janus is invoked to celebrate transitions in time and in the passage from young to old, from one condition to another. As one face looks forward, one looks back. Today, this double-looking is a common necessity (protecting oneself within precarious work while still offering the image of constant availability / security).
To be a security guard is to inhabit a peripheral place between the inside and the outside of power and property. While at work, a guard may assume the rights of a property owner, which often means denying access to other people. When the shift is over, we remove our uniform, and therefore, their authority. Rather than a mask, the guard wears two faces. This second pair of eyes must watch over their shoulder, because the security industry is notorious for its fraudulent treatment of workers.