"These children actively assaulted an impaired child," Delta reminds the headmaster, turning even to encompass the other parents in a glare. "If Theta was in a wheel chair and they destroyed that by, I don't know, throwing it off the top of a building, they would be expected to recoup the cost to us, and they WOULD be tried for wanton destruction of private property. But by all means, if they have an issue, I have the nearest police district's number. I can call them. Your children can and would be arrested for destruction of private property. Not to mention the fact that one of them seems to be missing. If any of them have RETAINED that item, they are also there for theft."