http://www.reuters.com/article/2011/04/22/idUS278986833320110422 Unruly airline passengers beware! Hong Kong Airlines is requiring its flight attendants to learn kung fu, something the airline hopes will help its crew deal with drunk and unruly passengers. The airline’s entire staff has been invited to train in wing chun, a form of kung fu used in close-range combat, but it’s actually REQUIRED for the cabin crew. The airline deals with about three disruptive passengers a week, according to Hong Kong Airlines spokeswoman Eva Chan. Wing chun instructor Katherine Cheung says the martial art is ideal for airline crews because it can be used in small, confined spaces like an airplane.