Easy... Nov '91 Virgin Atlantic MIA to LGW. Delayed for 9 hours, and then finally told our plane hadn't left London. They chartered a Tower Air 747 with a different seat config so some of us were left behind,on take-off the lights went out in the cabin - completely. People screaming, kids crying... you get the picture! Diverted to Stansted on arrival, due to fog, behind two other VA jumbos, had to sit on plane for a further 3 hours before we could get off, toilets blocked and stinking etc. Bussed down to LGW.. arrived home nearly 24 hours late. Lovely.... (but we did get some nice compensation from RB and occasionally still fly with 'em!!) Now... JMC - there's an airline I'd never fly with again... but that's another story!