Can I turn off my roommates computer?
Why are you going to turn off your roommate's computer?
He won't let me play on it anymore. He is a selfish man.
Prehaps he is. But you still shouldn't touch something that doesn't belong to you.
I want to win this battle and I'll do anything to win this.
It is a good idea to respect your roommates things so that they will then show respect for your things.