re: Drunk passenger forces plane to land at MSY

Ultimately the Captain's discretion.

Heck, just yesterday we had a pax "become ill" during taxi. Communication between FA's and Captain took place during the entire taxi until we were at the end of the runway to takeoff where the Captain ultimately decided to leave the runway and begin heading back to the gate.

Magically, the pax became better. Apparently it was an anxious traveler who was separated from their group with the seat assignments. FA's moved a few people around and we were back in line in a few minutes.