You have a choice not to injure them in kind, or at all. That may be a choice whose consequences you do not care for because it may take some thing precious from you. Still, the choice does exist and always exists and nothing except you can force you to choose other wise, Jx
For the purpose of clarity, I have to say that I teach no "killing" techniques. At least, I don't call them that.
I call them decisive....in fact, I'll often use the same term for breaking someone's arm, versus simply immobilizing it. On the other hand, a choke, while pretty "decisive" doesn't exactly require killing or permanent damage to be effective-though you can decide to do exactly those things.
That said, 35 years ago, I made a variety of choices: I chose to go to a party in Brooklyn. I chose to carry a pen with me, because carrying a gun or knife wasn't a viable or legal choice. I chose to stay out later than I planned. I chose to not go have breakfast with those gals, and try to get home....'
Things that weren't a "choice" that night?
Running when those guys came onto the platform.
Not giving them my wallet and watch.
Letting that kid stab me anyway, for some sort of gang ritual.
I certainly didn't get up that morning thinking, "Ya know, I want to stab a 17 year old boy to death tonight," but I'll tell you one thing, I certainly wasn't about to choose to allow one to kill me, either.
That's not a "choice" at all, and for me-at age 20, and that stage in my training, there was no other choice-there really could still be no other choice in tactics: there were three of them, and one of them was just there to kill somebody-in this unfortunate case, me. Three against one-Chuck Norris fantasies to the contrary notwithstanding-is a lethal threat, and justifies a lethal response. If you think you're going to feel bad about it, well, better to feel bad about it afterward than not feel anything at all, because you're dead. For myself, I've never felt bad about it-not even that morning: I was wolfing down pizza in the police station not two hours afterward.