We experienced an unfortunate practical experience where by we had to leave the aircraft just after boarding, shortly before the scheduled takeoff time, and re-board. The reason presented was that a passenger felt sick and had to terminate their strategies and therefor their baggage had to be found and eradicated. https://firstclassflightstobangkok.blogspot.com/2025/02/why-should-you-choose-to-fly-first.html