Keep the children AWAY from your chi. You must realise this is your chis domain and your guests are entering it. There can be many excuses for it. but the facts are your chi showed agression. I would not allow any children near it. JMHO
PS afterthought: I would also offer to pay any medical bills that are attached with this incident
PS afterthought: I would also offer to pay any medical bills that are attached with this incident