If this is one of those shitty companies that makes people come into the office I could see IT guys wanting to do some maintenance when folks are gone. I remember back in the day I patched a few hundred Windows machines on a holiday because I could get it done faster without having to pull Karen away from her Freecell game.

Of course, back then I had to go from PC to PC with a Windows update disk which isn’t the case anymore. Maybe they needed to route some cables? Do some network maintenance?