All bullying is intolerable. Bullying a child is a form of child abuse, and should always be treated as a serious matter whoever does it. It should never be a matter of "Oh that's just how kids behave - it can't be avoided".

But that's a separate business from the question of how it should be dealt with. Treating it within the context of adult courts and police is hardly ever, if ever, the right way. That too can easily becoem a form of child abuse, as would appear to have been the case with the little boy katlaughing mentioned with the Cub Scout eating irons.