If I'm on a train, it's usually for max of about an hour, and if someone is being obnoxious, I can move carriages. Not so great if Mr Eightpints for Breakfast is sat next to you on a 13 hour flight.....................
Agree with comments above - can't/shouldn't stop people drinking, but severe...
See it all the time when travelling........at Gatwick a few weeks ago for an early morning flight, for example, a group of 4 were in Starbucks - had coffee, but were also doing shots from a couple of bottles of brightly coloured stuff they'd obviously bought in duty free. Finished both bottles...