Anonymous wrote:OP here. My kid just said they go to the library when the roomie is drinking.
OP - if this were me, I'd be checking to see that the roommate is ok. Is roommate using the stash to just drink alone in room? Or do they bring bottles from the stash out to use at group events. These are sometimes very different things.
From what you've written, it doesn't sound like your DC is complaining about being disruptive. It does (maybe) sound like the roommate is an alcoholic (in which case I'm worried about roommate who is not disruptive but drinking alone, a lot).
But maybe I'm reading it wrong.