Hi Lizzy, given that he hasn't been in trouble before and that your son has a close relationship with him, showing how disappointed he is and a one weeks ban may be enough and seems fair (and I am really strict!!!) I would however be pointing out to him the consequences for him if the behaviour is repeated - i.e. a much harsher treatment not a repeat of the same punishment. Hopefully that will be enough. if he is being delivered to school and put into their care, surely at age 11, they should be keeping a better eye on where the children are to ensure their safety?