Markus Schuckert, a co-author of the study, told SCMP that on Asian airlines, where air rage incidents are rarer, the air rage incidents that do occur arise from inexperience and lack of knowledge about the restrictions involved. In China, where Schuckert described some incidents of air rage as "legendary" due to pictures or video posted on social media, some passengers have been known to do things like open cabin doors while the plane was taxiing to let hot air out, or throw coins in the engines for good luck.[1][21]