A little lad in our Congregation, about 8 years old, had picked up on the idea that he was not supposed to defend himself, and so was being bullied and punched at School by one boy in particular.
His father, a wise Elder told him that sure, he could defend himself, no way was he expected to take being bullied and physically attacked.
The next day he went to School and punched the Bully several times, he had no more problems at School.
But if that little lad had not been properly guided, he could have suffered as the guy in this Thread did in later life.