Let me also just say he loves his kids and our family. He spends a ton of quality time with them sober, but if it gets into the afternoon almost inevitably he will drink something. He's a really great dad and does so much for and with them. He never goes to bars, he's home by 6pm after work every night, he's a family man by nature.
Also, not everyone can tell he's been drinking when I can, he's good at hiding it. So he's not always getting fall down drunk, I'd say about 80% of the time he's drunk and only I know it.
And I say he's a functional alcoholic because he holds a very good job, is incredibly intelligent, and only drinks when he gets home from work (thanks to the breathalyzer now in his car I know that to be true). Now that hasn't always been the case, his office is very boozy and they keep it there and many people drink in the afternoons (insane to me). Not good for someone like him and I know there are others similar to him in that very same office. Ugh.