I'm going to break my roommates bottle of booze
Why would you break a bottle that belongs to someone else?
Because he offered me a sip of his booze and I didn't want it.
You should be mature and say no thank you when you are offered something that you do not want. Breaking something that doesn't belong to you is unacceptable and will lead to tension and problems between you and your roommate?
I'm planning to break it anyway.
This seems like a bad idea. You will make your roommate mad without any real benefit to yourself. Whenever you can, it's best to keep a friendly relationship with people you live with.