That would work. My dad said to sting like a bee. Anyone can kill a bee with a hand swat, but no one wants to be stung.
A kid can learn to handle bullies in many different ways. But, sometimes a kid is so emotionally beaten down, as this boy was, that he can't handle it. In that case, a kid could build self-confidence through martial arts.
Even better, remove the kid from the school.
The problem is, kids don't tell their parents everything, so most parents don't know the full extent of the bullying.
So many kids have been committing suicide. I feel so sorry for this boy and his family.
Mental anguish is a killer.
God can forgive, as only he can Judge rightly.