Blacksheep is spot on. In my experience, the UK is one of the worst places for ground induced damage (GID). On several occasions, I have known the perpetrators to just b****r off without telling anyone. Fortunately, evidence in the form of paint smears was often left behind so tracing the culprit was not too difficult. It is a function of cost - PPGM. Incidents like the one described on this posting cause insurance payouts with consequent increase in premiums which are unfortunately passed on to the customer. As if the industry is not going through enough already!