Passengers 'upgrading' themselves - what do you do?

[flapsforty]

Mr free-upgrade will not convince anybody here.
It doesn't seem likely anybody here will penetrate his wall of blatantly invalid justifications.
He's wrong and he knows it, but he can't admit it on open forum.

Before we get to the suspend-him-by-his-testicles-from-a-class-divider stage, let's call it a day.