Even those are at the extreme end of the extreme. It doesn't take long to develop a tolerance that allows one to function the next morning with 10-15 drinks/night, which is two to three wine bottles. I've seen several people fall into that trap out of desperation due to insomnia, since the never-ending hangover can be preferable to chronic extreme sleep deprivation. That's easily 3500+ drinks a year and all it takes is one of those per 9 teetotalers to get 1 drink/day average.
One of the “tells” of this class of alcoholic is drinks stashed all over the place to facilitate this round the clock buzz.