A former flight attendant has shared insights into the most frustrating behaviors he encountered from passengers during his years working on international and domestic flights. He described how certain habits varied by region, such as passengers in the Middle East showing less respect for cabin crew, Chinese travelers leaving meal trays in the galley, and Australians being particularly vocal when dissatisfied. The most problematic passengers, however, were those who abused alcohol, leading to disruptive and even dangerous situations due to the effects of altitude and dehydration.

He also highlighted other common issues, including wearing strong perfumes, overpacking carry-on luggage, and using electronic devices without headphones. Safety concerns were raised about passengers placing batteries and laptops in checked luggage, which can pose fire risks. The ex-flight attendant advised travelers to be mindful of cultural norms regarding dress and etiquette, emphasizing the importance of modesty and consideration for fellow passengers.