A business-class passenger aboard an EVA Air flight from Taiwan was filmed on 24 September using a drinking glass to scratch his scalp whilst seated in the aircraft cabin, shocking fellow travellers with the bizarre behaviour. The incident, captured on video by an appalled passenger seated directly behind the man, has sparked renewed discussion about declining standards of public conduct aboard aeroplanes.

The passenger vigorously rubbed the rim of an inverted drinking glass across his scalp repeatedly, causing the witness to lose all appetite for the upcoming meal service. Diane Gottsman, a Texas-based etiquette expert, confirmed to Fox News Digital that such behaviour is "completely inappropriate," particularly in a shared public space, noting that any form of self-scratching with objects in public is "unappealing and somewhat alarming." The incident reflects a broader trend of passengers behaving inappropriately on flights, including a March 2026 case in which a first-class traveller placed their bare feet on an armrest.