Re: Some sympathy
"For example, operations staff using the fire exit at night to avoid all the hassle with the front doors."
One place I worked in the 1970s (CADCentre Cambridge) In the early hours it was impossible to find the security guard to be let out because he'd be sleeping in some random place. So standard practice was to go out through a window and simply close it, couldn't secure it of course. When someone wanted to come it in at night they would wander round the outside until they found a office with the lights on and knock on the window. We all recognised each other of course, especially the regular night owls.