In this case, are you buying the 'boys will be boys' excuse?

Your poor son, i would have gone crazy on the teacher. That is bullying and she needs to stop them as soon as she sees them. Honestly i learned the best way to teach my to defend himself and not be bullied was to take him around other kids and if they tried to bully him i would tell him to hit back and defend himself. But i also told him it is not nice to start a fight he can only hit if they hit him first. He is 3 1/2 and he is not a bully and he is not being bullied at daycare or anything like that. It took me a good 3 months though for him to hit back, he was scared he would get in trouble.