Unarmed security guard.

Some friends of mine long ago have done this. I don't know what the money is like these days (does anyone here know?), but I expect it's bad. The advantage is: you actually get to work on your laptop or notebook or whatever you like most of the time. Mostly what a security guard does is let truckers sign in when they make deliveries. Between deliveries, all you need to do is be there.

Has anyone here tried this?