On friday night DD was whacked by a friend of DS. He used his folded up scooter as a weapon and left a big bruise on her forearm. They were all playing in the park and my babysitter was in charge so she just brought my DCs home. I phoned the parents, who I know well and told them about it. On mon morning spoke with the Dad and he told me how his DS (aged 8) felt under siege, that there are two sides to the story etc. All the kids were playing a game throwing seeds at eachother and at the time this happened 3 boys were playing against my DD.
As far as I'm concerned this child crossed the 'don't hit' line and needs to see the damage he did to DD and say sorry to her.