Let’s assume that I’m in my normal “in the woods carry mode”.
I’d make the clown aware of the .357 in my shoulder holster, and convince him to take his threatening act elsewhere.
If he pulls a knife and is closing on me and ignoring my commands to stop approaching me, when he gets to within 20 ft. he gets two 125 gain .357 JHP’s in the chest and one in the head for his trouble.