Time for a one shot one kill game?
“yes your honor, I felt threatened that he was going to knock me out. I had to defend myself”
That's what I'm thinking. They try that on me, or I see someone do that - that is a life threatening attack. In my State, that is good enough to use deadly force.
So my game is to try to drop them with one well-placed 9mm or .45 ACP hollow point...such that they are pronounced dead at the scene. Save the ambulance crew the trouble of a dangerous code 3 run to the hospital and any waste of medical services on them.