This is:

We need to teach children to "give out" adequately.
Called to? Let him be able to answer with words so that the offender will no longer sneeze.
And teaching him to move his fist in response to the words is a straight path to the colony or traumatology for the child himself.

Gentlemen, usually who says so thinks that a man speaking ugliness from the series "Natasha Bukashka". I will tell a secret, such jokes usually up to 3 class. The speakers often did not say that.
You said, “Nastia, a prostitute,” and then you couldn’t understand why Zhenka, your good friend from all the way, grabbed you with a wallet. It just liked the woman.
Or stick the gum into the girl’s hair. So she had to shave her hair clean.
And then insulting that “waste, waste.”
I remember the fun. He struck the boy in the shoe while he was in the dining room.
All of these moments are not taken from any dirty school. High School, one of the best schools in the region.
Teachers on the drum. They insult? Not their problems. Tinnitus in the hair? The fault itself. Damn in the shoes? He hurt the wrongdoers. They are such good boys... 20 years have passed, everyone is sitting.
The only hooligan who ceased to behave like a freak, who got puzzles.

So what is this? Adults on the drum. And those who have been hated try to protect their hated children by saying that "you can offend, no one will unleash fists."