Rule Number #1 - Avoidance
Rule Number #2 - See Rule Number #1.
Avoid the bad parts of town.
Avoid being below half a tank of gas which could force one to stop in a not favorable location.
Avoid standing out.
Avoid going to places where alcohol is served
Avoid places with young males looking to prove something
Avoid engaging
Avoid getting hit. (Run, Block and Run. etc. )
Avoid getting hurt.
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If one goes to bed early, and does not get up too early and avoids certain locations the chances of confrontation goes way down.
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I get that.
I teach that.
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I also have to write in the past a poster said people would never know what they would do.
I explained I was there and did stuff so I have an idea of how I would react.
Is it different based upon situations, and distances and everything else?
Yes it is. Everything in life is solving a differential equation and finding the area under the curve as one approaches zero or some other limit.
People do it all the time. If they didn't they couldn't use a fork for they would stab themselves in the face.
They couldn't drink from a glass as they would smash it into their face.
So taking it to absolute makes all discussions on the internet pointless. In my opinion.
In the past when a person who has made these comments about people not knowing until they have been there, I ask have they been there. Please provide examples.
Like have you been shot? Shot at? Long gun? Shot gun or rifle? Or pistol? Semi automatic or revolver?
Have you been stabbed? Cut?
Have you been hit by tazers or cattle prods.
Have you faced these weapons but not been injured because of luck? or because of verbal judo? or because of some skill set? Please explain.
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Have you been hit by a car trying to run you over as a pedestrian?
Have you been attacked by swords and axes?
Have you been attacked by sticks, bats, golf clubs or other blunt items?
The list goes on and on.
All but being shot has occurred to me when I was younger. It helped pay for college.
The LEOs at this point usually reply that anyone that has that experience is a criminal or worked certain cities.
Your arguments almost seem to be reaching for the point of authority that no one can make a point of self defense because of your definition and if anyone does try they are wrong.
So, I am wrong. Ok Fine move on. Stop commenting. Let people discuss.
Or present examples as was asked. (* Sorry Drop Bear I did not give any real examples in my first post. I am in trouble for this myself.

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Now can it be taught?
Yes.
Does it require someone being able to learn how to damage? Yes
See example about ex girlfriend stabbing me repeatedly hard with an aluminum training to make sure she knew the areas and position and the intensity required.
I have also seen many who want a certificate so they can 'FEEL' safe. I was even told in a business class by an instructor that I could make money doing this.
I had to explain to him that it would work short term. And then one person gets hurt or runs their mouth and gets hurt and you get the reputation of not being any good and loose most of your clientele.
I have a couple of examples. One a niece in High School and another an associates daughter.
The firsts she wanted to learn to hit hard. So we exchanged shots until she could take a punch at about 50% from me and give back everything she had.
I young male cup her rear with his finger in the middle and S A'd her. She turned and hit him dead center of the chest. He went down with no breath and lost any chance hitting hard on his butt. Teacher said she was in trouble for fighting. And this is where she was smart and had listened to me. Her reply was on point: "You watched him S A me and you are going to punish me for self defense. I'll see you in the office. She went there. The teacher got into trouble The young male was expelled.
The Second was more technical training , with releases and strikes and locks and dirty boxing from FMA.
She graduated and was working as a social worker. She showed up to a client where the ex had just left from beating her. While she was there, he came back and tried to beat the one I knew. She released the grab and was able to cover enough to counter with a throat stab and heel kick to shin so he went back to the ground where she kicked him again, and then rolled him over and pinned him with a restraining lock that most police use.
I got calls from both of they after the incidents with thanks.
The point is Self Defense requires Violence. If you are not going to use avoidance. Once Avoidance refuses to work, then Violence is required.
If they are not able to execute the violence ( And many people cannot ) then they need to train to know that so that they will use avoidance.
Blocking works. When surprised or out of position and or looking to catch up on lost timing. Deflecting by some is not blocking.
Redirection is not a block to most.
Slipping and countering is definitely not a block.
Yet, the block will give many that chance to try to catch up.