- China Southern Airlines warned passengers on social media not to throw coins at planes.
- A Wednesday flight was delayed four hours after such an incident.
- In a video, a flight attendant tells confused passengers someone threw “three to five coins” into the engine.
But they still probably use buses on occasion. Also, it’s not exactly hard for a passenger to step through the little doors to the stairs at the end of the jetway, chuck a coin, then continue boarding.
Those doors are alarmed (at least in the US).
They’re also frequently propped open worldwide to handle gate checked bags.