In my neighborhood, a couple of pit bulls got loose and attacked a women walking her small toy poodle, the lady was fine but the pit bulls killed her small dog. Well we have a small dog too and I want to get my mom something that she can take with her when she is walking to prevent something like this from happening to our small dog. What would you guys recommend? (an actual firearm is out of the question, my mom is paranoid about them and would probably end up shooting herself in the foot or something) I'm thinking a stun gun would be perfect, would you guys agree or do you have other suggestions? And if you think a stun gun is sufficient, what voltage or rating would you recommend that would be enough to instantly bring down a LARGE pitbull/dog? Thanks a lot and any advice is appreciated.