Ds is 15, never been in a fight before. He was in school today when a lad called his friend the n word. DS turned around and asked him 'what did you just say?'. The lad replied with 'you heard, what are you going to do about it?'. He then squared up to DS. DS punched him, the lad fell into hedge and that was the end of it.
This is new territory and I don't know how to react. School aren't aware of what has happened.