David, tell your roommate to relax. It could be worse.
Like, for example, when
I get drunk, I have the tendency to introduce myself by another name, not recognize acquaintances, and take pictures of people's chest hair.
Oh, and I black out every time I drink. Now that's a sign of problems, is it not?
Oh, and drinking after a 5PM class? Tell your roommie that it's totally European of you to do that. And, um, hasn't your roommate ever heard of happy hour?