A friend of ours who's recently got a new job as a flight attendant on a major long haul airline (which shall remain nameless) told us this story from her maiden flight tonight.
Apparently there's two intercoms on big airplanes - one for us passengers and one private tanoy for staff. This private line broadcasts into the cockpit, 'backstage' and into the staff rest / sleep area.
The chief trolley pusher, frustrated by her staff skiving off, shouted down the private line - "Right you lazy cunts, get up - the pigs need feeding!"
Problem was, she'd lambasted them over the public line. The entire 747 had heard her!
Now, this is the very definition of quick thinking - she put on her most poshest voice and announced to the piglets:
"Could all passengers please note, the tanoy is for staff use only..."