CD2M
Flying Lawyer has said it so much better and with so much more expert authority than I could.
You are effectively saying that if some lost rambler or dog walker steps into a taxyway, that you are entitled to kill them by running them down with your propeller because they are effectively hijackers.
Barking mad. You'd be laughed out of the dock and into the cells with a defence like that. I can't believe you're serious.