Basic rules: Anyone who touches me in anger is an imminent threat to my life and will be dealt with accordingly until he or she is no longer a threat.
Remember (especially for when you are answering questions, with your attorney present, after you did a Rhodesian drill on some skell): Your actions are designed to STOP the threat, not murder, beat, shoot, teach a lesson.
1. Dude came at me with a knife. He slashed at me, then when he went to run away I shot him. Although in many jurisdictions you can shoot someone to STOP the commisiion of a designated felony or to PREVENT the commision of a felony, get ready to get indicted.
2. Dude came at me with a knife. He slashed at me even as I backed away telling him to stop. I then used my firearm to stop him. Get a medal.
Applied to the video.
Dude wasnt justified in smacking her.