Shit, I knew someone at University of Houston that lived for almost a whole school year in an unused dorm room. Just moved in after hanging with a friend and they realized it was unused. Started with just a night crashing and then a week later it was their room. RA never gave a damn I guess.

Just remembered another who did something similar for a few months but had to hide it from the RA. Would sneak in and never turn the lights on and be as quite as she could.