"As always, do not detach your seat safety apparatus until the plane has rolled into its destination gate, or in this case field, and come to a complete halt.  Now, of course we all know, and you don't need to tell me, that Relativity prohibits there being any such thing as a privileged frame of reference in which to declare that something has halted.  What I mean, simply, is a halt relative to the ground, as seen through the windows, which should appear stationary relative to yourself, and you should also notice subjectively an absence of any apparent acceleration in any direction.  If you're not sure, don't unbuckle yourself.  If you need to argue over the definition of what exactly constitutes a halt, it means the plane is not, for our purposes, at a halt, and you should continue sitting down... you know, actually, on this special occasion, let's just wait for the cockpit to announce that we're fully landed.  I know you're worried that they'll be too conservative in deciding whether or not we've landed, but please, for the sake of Coordination, trust them this once.  They don't want to stay on this plane any more than you do."

"As always, do not detach your seat safety apparatus until the plane has rolled into its destination gate, or in this case field, and come to a complete halt.  Now, of course we all know, and you don't need to tell me, that Relativity prohibits there being any such thing as a privileged frame of reference in which to declare that something has halted.  What I mean, simply, is a halt relative to the ground, as seen through the windows, which should appear stationary relative to yourself, and you should also notice subjectively an absence of any apparent acceleration in any direction, except for a completely constant force pointing downward, corresponding to gravity.  If you're not sure, don't unbuckle yourself.  If you need to argue over the definition of what exactly constitutes a halt, it means the plane is not, for our purposes, at a halt, and you should continue sitting down... you know, actually, on this special occasion, let's just wait for the cockpit to announce that we're fully landed.  I know you're worried that they'll be too conservative in deciding whether or not we've landed, but please, for the sake of Coordination, trust them this once.  They don't want to stay on this plane any more than you do."