Only psychological deterrence by publicly physical punishment is the uprooting way:
July 21, 2017, a report that in the United States, Texas school district approves paddling for misbehaving students.
Please see follow photo, it is only effective way for uprooting bullying.
Experienced such a deterrent, who dare bullying again, after such education, students got lifelong immunity, they will lifelong dare not bully others.
This method is really brutal, however, except this way, there is no mercy way available, if we allow those brain defective continuously in bullying to innocents, the result is more brutal.
The professor of the University of Ottawa, Dr. Tracy Vaillancourt who found that Bullying hurts long after the abuse has stopped.
Nov. 28, 2010, article Inside the bullied brain - The alarming neuroscience of taunting reports that: "in fact, bullying can leave an indelible imprint on a teen’s brain at a time when it is still growing and developing. Being ostracized by one’s peers, it seems, can throw adolescent hormones even further out of whack, lead to reduced connectivity in the brain, and even sabotage the growth of new neurons."
The harm caused by bullying was amazing, so that categorically dispel the bullying desire of the bullies by paddling punishment is worthwhile.
This is a most worth way that one time worked forever.