I would warn and then pepper spray (Kimber pepper blaster).
Yes officer, I was sitting down, eating my food and minding my own business, when the assailant came up to me and verbally assaulted myself, my wife and my child. I then warned the assailant that I was prepared to take defensive actions to defend my family and end the assault. When the assailant continued their assault, I deployed non-lethal deterrents to end the assault.
Machine gun all of them then hang them from lightpoles .