I thought the whole “reservation” idea was really well illustrated in the scene where the gang members find Shane and take his money in lieu of the bounty on his head. It pointed out that all the stuff the strike team does creates this external enivronment that reaches out to pretty random people and does lots of “splash damage.”

And it showed how relatively useless a lot of Shane’s skills became when he was no longer on the inside defending his fortress, but on the outside trying to make it on his own.

It’s been a pretty Miltonic fall for all of them, as the very characteristics of the world change as their Big Sin of betraying one another poisons their little garden.

Oooh, I sense a post in that somewhere . . .

In this instance, I think you can reasonably see Shane as having left Vic’s authority, and he’s really up to no good. So etymology aside, your use of the phrase is apt.

(it was Victor Samuel Mackey)