Yeah I don't live with my mother.. She's not exactly the "mothering" type.

He doesn't exactly have a "room" but we have constructed a wall using my desk and books shelves in the living room, as well as his dresser and other furniture, to block of our would-be dining area for him. It leads into the kitchen and has closing shutter doors so it is like a room except without a full wall.. but it's high enough.. a least 5 foot 3+.

For boundaries, they are told CONSTANTLY. All the time, everyday, my Dad tells him he has no RIGHT to take my brother's toys, or put his hands on him. My brother has every right to make noise and watch TV, go into the kitchen and make himself food (yes because his room leads to the kitchen he thinks he owns it or something. My brother will walk into the kitchen and one of two things ALWAYS happens. Either a.) our roommate will assume he's coming to bother him and will yell at him, or B.) my brother makes it to the fridge and opens it and a second later, roommate is there telling him to get out and stop wasting electricity >_>) Our roommate acts like he's doing us a big favour but in reality he's just constantly stepping over the line.

I tell our roommate too to mind his own business, I did so this morning. It's none of his concern. When my brother is making noise, he's a 9 year old boy, he makes noise, I put on my headphones, put on the music, and wow magically it disappears. Our roommate USED to do this, but all of a sudden he just felt like not doing it anymore and his bossiness has stepped up 10 times since then. I've gotten into arguments with this guy, and he does 99% of this when my Dad is at work or at the store. Screaming matches too. It's been going on for 5 years and there have points where it's gotten so bad that I had to lock myself in my room and cry over stress and frustration.

He's ALWAYS trying to get my brother into trouble, it's like he has something against the kid. What's worse is that my brother gets mixed messages. When my Dad is around the roommate is all nice to my brother and laughs at the videos he shows him and all that, so my brother thinks that he's his friend now. But as soon as Dad leaves it's like he becomes the devil, and it's sickening.