No "hey let's split rent and I'll get you all these free drugs" before eventually they come out with their expectations? Congrats. You don't wanna be there. You especially don't wanna share a jail cell with a dude who got himself moved in because you helped him with a phone call once and eventually he scratches the hell out of your glasses while you're in the shower because you turned him down.
Sorry for the run on sentences. I'm typing in the bathroom at work.