I side with the FAs on this. They don't know you and don't know your tolerance or what your behavior might become. It's nothing personal but the last place you want to be with an out of control drunk is at 38,000 feet in a small metal tube going 550 mph. Yes I understand the booze is free but I don't understand this need to drink like your at a college fraternity party. Do you drink like that at company functions or with customers/clients?