Injustice and Getting Set Up

I am quite certain that I am being set up by Ben to appear as if I were an abusive parent. He tries for hours on end to irritate me and get me to react.
He smokes cigarettes in the house, in my car and on the porch, none of which are allowed. When I try to get him to stop he usually gives me the finger, says horrible things and puffs away defiantly.
He smokes pot in the house, in my car and in the garage, which is also not allowed.
He takes my belongings and loses them. My winter coat, my ski gloves, socks, alcohol, CD player, you name it, if he wants it, he takes it. He goes through my room all the time, looking for new things to take. He even took his brother's Christmas present.
Of course I have to confront him. Of course I get angry, he then tells me to hit him.
I don't trust him at all. He lies constantly and when he recalls incidents to his mother or sister or anyone else, for that matter, he is very inaccurate and always focuses the blame on me.
Now he has begun telling me I need couselling, therapy, medication, etc. Talk about projection!