Or: Set up an extremely complex device that hits him in the face with a moldy piece of pizza when he opens the bathroom door after he gets up, because he will have to pee.
You're going to want to use some string to attach around the door handle, set up some sort of pulley that breaks and swings the pizza down when the door is opened. Test it until the timing is just right.
Or: Be the better man, take the 'high' road. Be mature and face the fact that he's an inconsiderate asshole who hates you with a passion. Learn to deal with his immaturity, and refrain from letting it take the best of you.
He's trying to get you kicked out.
What's funny is, I have 2 step parents and neither are hardly involved in my life, and when they need to be they are very polite.
He seems to be a scheming glutton son of a bitch.
OMG WOWWWWWWWWWWWWWWWWWWWWW, A NEW ONES COMMING
he steal your cookie?
EAT A WHOLE BUCKET OF KFC IN FRONT OF THEIR FACES
I am the God.