“Maybe for someone who has never been in a fight.”

Seconded: Kentucky has a stand your ground law. Not my cup of tea, but that looks like a decent application.

THIS^^^. I am more cool tempered in my older age but if I find myself in a fight where more than one decide to attack me I am going to do everything in my power to hurt or yes, kill you. Because I sure as hell am not going to allow you to do that to me once single combat went out the window.

Multiple opponents raise the level of threat to imminent danger of death or serious injury. He gets to do whatever is necessary to walk away.