The flight crew for a flight from Miami to LaGuardia showed up an hour and a quarter late, and they were roundly booed by the passengers.
Deciding that this constituted a “safety threat” because the environment was “hostile”, the flight crew refused to board the aircraft.
As a postscript, when the passengers were sent to LGA the next day, their luggage was “accidentally” sent to JFK airport.
At some point, we will have passengers dismantling an airliner with their bare hands.