|Mr. Ophee should know, as an airline pilot by
training and profession, that when you have a passenger in an aircraft
shouting and hollering that the plane is flying at the wrong altitude,
and he won’t stop, then you don’t argue with the passenger.
Especially when he’s paid by a competing airline and has done it
many times before. You just quietly check that the altitude is in fact
correct and confirm to everyone on board that it is correct. The only
difference between that and the field of scholarship is that on an
aircraft the disturbance wouldn’t be allowed.