You may shoot to stop. I don't. I not only fill hollow points with dog waste but intend to empty all five chambers if I should have to use The Judge. Not meaning any insult, but people who "shoot to stop" are foolish in thinking that a thug who is intent on harming you with deadly force is worth saving. And employing only " stopping force " may get you killed. Such attackers have made their choice to reap what every whirlwind you have at your dispocal; they are human vermin and deserving to be ground hard into the ground they trod.
The doggie doo infection agent won't have any immediate stopping effect, and your use of it opens you up to certain lines of legal attack that you would find rather unpleasant.
My conscience is satisfied. I've done all I can do by offering the advice in blunt and unequivocal terms, and explaining why it's worth considering.