There is no “maybe not” in this scenerio.
You can do what ever you want, but in this circumstance you are not going to beat the rap or the ride.
I disagree with your certainty. If a guy is going after my wife with a meat-cleaver, and I shoot at him, hitting some unseen bystanders in the dark, I may be held not liable, because any reasonable person might have attempted to stop him as I did, and my having consumed alcohol did not CAUSE those people to be shot. They may just as likely have been shot were I sober, and/or were I a cop.
I think there is a solid “maybe” in some scenarios.