I was passenger on a flight from JFK to Manchester last year with BA. Majority of passengers seemed to be Ultra Orthadox Jews. They completely ignored any cabin crew requests regarding seatbelts etc. During a period of turbulence over Newfoundland several of them ignored the seatbelt warnings, walked to the exit doors and started prayers. I must admit for the first time in my life I actually hoped there might be a bit of severe turbulence and those arrogant fools would fly around the cabin. Really wound me up, particularly their disrespect to the crew.
Having experienced the straight talking authoritive stance provided by Quantas staff to ignorant passengers I think this would have been interesting to witness on an Australian carrier.