car damage
Oh Mate, that sucks,
go down homebase and buy one of those little door entry cameras, for about £75.00 i got one when some little shite kept messing with my car last year, then he stopped as soon as i installed it.
It hooks up to your video, and TV so any movement will set it off and record the little cnut so you go round his parents house with the evidence and if necasary the police, but seeing as they probably won't give a damn, at least you can identify the sod so you can extract some revenge...
Years ago my old fella goes out to a 10 year old sitting on his bonnet this kid says you can't touch me, my old fella gets hold of him by the throat and picks him up, and dumps him on th floor.. this kid scarpers pretty quickly never heard another word....
Hope you get it sorted, matey.