Muscle Man roommate shrinks you down

Description: New roommates suck.  and just having a connection with people, suck.  well, this new roommate is a muscle jerk.  he's naked pretty much all the time, working out, and not even with real weights just stuff he has around the house.  it's weird.  when walking in, he there's blocking your room, and won't let you in.  they he says his grandma is a wizard or something and shrinks you down.  he wants to step on you with his massive feet, also, he wants take over.