Recently had to position on FR. Cabin crew hid in rear galley as two stag parties drank cans of beer, whilst standing in the aisle.
Seems they had bought it at the terminal and carried it all on. CC made no attempt to stop them and got round the 'blocked isle with drunken lads' problem by not doing a trolley run!
Not that they probably could have done much as none of them seemed to speak English.
Perhaps when O'Greedy hires his cabin crew they should have to have a certificate in English as well as for pool drills!
(ducking now for the flack!)