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Pierre-Yves Monnerville worked as cabin crew for major airlines for 17 years. He's had to kick people off planes for being too drunk, but always tried to defuse altercations. Monnerville told Insider he wasn't there to "play police" with passengers.This as-told-to essay is based on a conversation with Pierre-Yves Monnerville, who spent 17 years working in commercial aviation. It has...