Should it be punished? Yea. When it's present it should be treated almost as physical violence. Words can hurt and actions are even worse. It should involve talking with the parents to figure out why the student acts this way at school and if he or she does so at home also.
Yes, in my life I have witnessed harassment. Did I do anything? Well, to be honest, it depends on the person. SHOULD I have done something, yes, I should've. And so should everyone else who sees it. Just imagine if you were in the victims shoes....
