further reply in #211 might be ignored by you, please check.
You introduced FriendlyFire mod, it works but it will also introduce other problems, like making guards fully invincible. You didn't replied me on my further reply in #211 , so I just tried fixing this problem on my own by adding some codes.
That's why I've modified the code to implement this and made a pull request #216. please also check it, which could be a solution of this issue. **

Sorry for not checking the replies in #211, life is busy and I had to focus on other things.
As for #216 I do like the idea in theory but I think it could just lead to abuse as it stands currently (insta-killing guards for armor while they don't attack you because you technically don't have a low reputation to get free armor).
Of course, you could make that feature an addon to the mod using the same methods just inside a forge event instead.

I do have a plan for dealing with this though in the future where it's based off a 3 strike type of thing but I'm open to suggestions