The options are to try to persuade the perp to leave or to shoot him.
I agree. "Drop that stuff! Get out or I will shoot you!"
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.