Someone from DS14’s school has been a nuisance, knocking on our door and running off, waiting outside our house shouting his name, and although the police gave him a warning which stopped it for a while, our recently acquired car has now unexpectedly broken down for no reason, with the heater taking a long time to come on despite us buying a new battery and the car being built like a tank that we only bought seven months ago, and while it had been fine for months, I saw him walking past and although he is obviously denying it, I refuse to believe the car has just broken down on its own and suspect he may have tampered with it. I told him that I'll call the police and he started getting scared which is another red flag.