So DS friend (his grandma lives next door) came to call to ask DS to play. They were playing upstairs. I hear DS crying go up and DS1 and DS2 say friend has hit DS1 head against the wall. I send friend home as DS was very upset. Said I think it best you go home as DS is upset and said a was a bit disappointed with what had happened.
An hour later next door neighbour (friend grandma) comes over to say he is really upset and that I'm out of order for sending him home as he's really upset. I don't really know if he did hurt DS on purpose but it was play that had gone wrong and I sent him home as DS really wasn't up for playing with him anymore. AIBU??