Not that it's right and not that I would ever suggest this, but sometimes when you have a blistering drunk and you deny them liquor, it gets worst. Most times, they'll get sleepy and pass out.
Also, most of the passenger problems we've had is when people mix muscle relaxers and/or anti-depressives with alcohol and freak-the-hell-out on the airplane so she may have already either been serving herself alcohol or was mixing it with something else.
Near the top of descent about 15 years ago, flying the redeye from DEN to ATL, we had a passenger lose her cookies copmletely blasted on pills (her admission) and booze (only got served one and apparently had snuck on her own) and was trying to start a fight in the cabin with her seatmate and acting like an annoying drunken sorority girl. Non-compliant with cabin crew instructions, but we were already at the point where ATL was going to be our best choice.
I had no contact with the passenger at all other than listening to the situation over the interphone from the crew and acting as the "go between" from the captain and the lead flight attendant. Police meet the aircraft and as I'm walking past the small crowd of law enforcement aroiund her, she points at me and says I was in the cabin calling her "bitch! bitch! bitch!" which caused her to freak.
Humph. Ok. Have a great day guys.
There is nothing worst than a drunk who cannot hold their liquor and freaks the hell out.