Bloody incompetant idiots.
You “live” common sense and protocols and decency all your life.
IF you have done that, and IF you have any humility and reason, you can then “practice” etiquette and procedural rituals before leaving the airplane.
IF you have humility and rational thought, you KNOW you can listen to your advisers and protocol experts FIRST.
But all of this “assumes” you are not Obola or his wife. Who “know” they know all, and do not have to listen to anybody.
Silence, peasant!