There are plenty of counter-examples to that. Many heavy drinkers get to the point where they're only feeling 'normal' due to drinking a lot, and can only go ab

There are plenty of counter-examples to that. Many heavy drinkers get to the point where they're only feeling 'normal' due to drinking a lot, and can only go about their day by heavily indulging. One of the Monty Python guys was an alcoholic, at the 'bottle of vodka per day' level. You've probably also known some heavy alcoholics at some point in your life if you've been around long enough, but you wouldn't really know it unless you knew the subtle clues to look for; They tend to become very good at hiding it. They're not chugging vodka out of a bottle, they're putting a bit of a pick-me-up in every cup of coffee they're drinking.