It's getting dark outside and my girlfriend feels a little unsafe, or at least unsettled, some times walking home by herself. So she wants a stun-gun. (she does have a nice SIG232, but no CPL, so...) And that sounds good to mE, except I dont know anything about them. Searched online, off course, but they are all the best independent on specs. And it seams like the output voltages wary wildely. So what should I look for? Any brands that is better than others? How mmany volts would be needed to put someone down? I'm not the kind of person that looks to save 10 bucks but rather get the best one available . Especially in this case!