I go straight to the parents, I don't care if they are pleasant people or as rough as. I say to kids show me your caravan/tent then watch them crap themselves as I head off to speak to parents. Always worked for me as parents who sit drinking all day and dont bother supervising their kids also don't want to be hassled by other parents complaining about their kids. I inform them of their kids behaviour and that its not on and that I thought they should know and then leave them to it, tends to nip it in the bud.
If trees are on an occupied pitch then they're out of bounds of course. But I've had complaints about my kids in trees behind folk's pitches, in the middle of the evening. Not border type behind, well behind. Some folk seem to want their pitch plus a 20' exclusion zone too, you know?
Meanwhile back at the weak bladder pitches its great news everyone. I came across a uni-sex bedpan in the chemists yesterday for only £9.99. Yes!!!! pass it round in the tent suitable for all. No more 4am jimjam trips to the loo's.
Best of all no more yapping Shietzoo's in caravans.
The fact of the matter is that these children should not be on Samtheman's pitch, nor tormenting the dogs.
Samtheman - I hope the remainder of your holiday is event free and you can start to relax and enjoy yourself. I have a child with ASD (very mild) and although this has made camping difficult at times but on the whole he finds it a wonderful outlet. Good luck and may things improve for you soon.