When I got a DUI they asked me 2 questions.
1) Are you a heavy drinker. I asked to define heavy. They said 8 or more drinks a week. Ha! I was drinking a 12 pack a night.
2) Have you ever had a blackout. I asked how many? They said 'one'. Pff, I was blacking out every night. It became the norm for me.
In my experience the more you drink the more blacking out seems less scary and you almost 'seek' it.