Why do you resent this guy's drinking? I don't understand.
Seems like living one life is enough, no need to try to live the life of the guy up the block, too. He's not your child or your ward. As long as he's not tearing up your turnips in a drunken rage or urinating on your front porch, live and let live, I say.
Again, I wonder - why does it bother you that this guy drinks? People in the thread are making guesses, but only you can really answer that question.