DS is 4. Just started reception. In the past at nursery he has had a few tete a tetes with particular peers. This was dealt with at nursery by time out and other discipline.
He has been at school since Sept. We have now been spoken to on 2 ocassions an incident where he pushed another child after a day of not being kind and sharing and was put into time out. And today, he has bitten another child. Even more embarrassingly so, it's a child of a lady who I am friendly with.
I am mortified.
When the first incident occurred at school, we didnt prolong the punishment but spoke to him why it wasn't nice to do those things and enforced kind hands etc.
I intend to do the same this time around and will speak to him when I get home.
Have messaged friend, saying it was my son (she had a call earlier today to say a child had bitten her son and we joked that I hoped it wasn't my son 
) She said not to worry, her son is/was fine and there is barely a mark.
I am so embarrassed and mortified.
Any ideas on how to handle this? I don't him to be "that" kid.