Yeah exactly. It's a fucked situation all the way around. And then there's the question of what if I have a CCW (carry concealed weapon permit) and they pull a knife on me, and I blast them. A lot of places, most notably texas, I'd imagine you'd be fine. But here, in all honesty, even with a CCW (which the entire course emphasizes to not shoot unless it's absolutely life or death), a knife being pulled on you, your life being threatened; you'd still probably get 2nd degree murder or manslaughter. Granted you killed them anyway. Scratch in "attempted" if they live. I think mace is probably the way to go. Blind them and run. Make sure not to get yourself, and I've also heard "civilian" mace can be weak sometimes. Also, some people it incapacitates them, others it does next to nothing.