Towards the end for me I would black out after two vodka martinis. I would go on to consume many more and do lots of things and nobody knew I was in blackout. But I could only piece together a night by credit card receipts and stories from friends. Its started to get very dangerous at work functions. Then I learned that a little coke will pull you out of a blackout and more will sober you up so to speak. It was like Dr. Who - I would just all of a sudden come out of a blackout staring at lines of coke I had no idea how I got. So that kind of became a bit of the norm for me to function.