I can see how this is going to play out now. Once a person boards (quite when that actually is is subject to another argument)'they can insist that they are taken to their destination, no ifs, no buts. Any attempt to deplane them afterwards for whatever reason will now involve a fight. The passenger can not lose. If they are whacked they claim, if they are ejected they claim. The grasping public will not believe airlines when they are told an aircraft is unserviceable, weather is out of limits or passenger X has misbehaved. Over the years I've beeen accused of discrimination, lying, stupidity, over-reaction and so forth. It looks like more fun in the coming years.