As soon as some enter an aircraft their IQ resets to zero..I don`t believe that Jet2 have any more, than the same share, all the other `Holiday airlines` get. The difference is that Jet2 management are prepared to publicise what has happened, publically back their Captains and crews and use it as a warning to others. Especially their well known policy of pursuing these clowns through the civil courts for their diversion costs. It smacks of a `firm hand on the tiller` and that is often a reassuring reason for people to trust them with their holidays/flights...