[MrEdd]

Let’s restate point number one more honestly, and then give a revised point number two which flows naturally from that.

1. Don’t physically assault people even if they do something annoying.
2. If you do, you fully deserve whatever happens to you. Even if you are famous.
3. No further points are needed.

[Pontiac]

After an argument with Fernando Pezetti, a 50 year old cartonero (paper and trash scavenger) over trash left on the sidewalk next to his house, Mr. Garay got into a fight with the man, easily overpowering him and punching him in the face. As Garay left, the scavenger produced a knife and stabbed him twice in the torso.

As I read this.

Garay caught the Hobo rifling his trash and making a mess. Got in to a fight with Pezetti and punched him out.

Having he thought vanquished the hobo he turned his back on him and walked away. Pezetti then drew his knife and stabbed him in the back, murdering Garay.

Lesson 6) Never turn your back on an opponent.

[Secret Agent Man]

1a. You may physically assault someone if they are going to murder you. Preferably with a better weapon than they have.