My DS is being bullied by one particular kid in class. He goes 3 days a week, for 3 hours. The incidents happen every school day. Pushing, hitting, taking toys, yelling and screaming, and getting very close to DS's face. Teacher thought he had social skills issues, but he was too afraid and overwhelmed to join in during play time while this boy was around. My son was afraid to tell me, he thought I would get mad at him. I have talked to the teacher and she said she would keep an eye out, but things are still happening.

At what point do you tell your child to fight back? If the teachers won't intervene, what should I do next?