I'll do the background bit first in an attempt not to drip feed. I've lived in this house for about 4 years, with my DS. Neighbours moved in at the same time with their DC. Every member of the next door family is annoying. They do everything loudly - chatting, playing, arguing. They stole a half a foot strip of my drive when they got theirs done 
. They absolutely hate me having some spindly little trees in my garden and throw every leaf that floats over back into my garden . They haven't been speaking to me for a year or two in part to do with me daring to have trees. I have quite enjoyed having them 'not speaking' to me as they can't send their DC round constantly any more, and we just ignore each other happily.
I've got a dog. The dog started barking at midnight last night. He's only done this once before, a couple of weeks ago when next door mum and dad were absolutely screaming and cackling in the early hours with their mates. They thumped on my wall then several times and there was no way of me stopping the dog barking aside from sitting next to him on the sofa downstairs. I had tried putting the radio on in the back kitchen/living room where he sleeps to drown it out but they were so loud that I could still hear them fucking cackling over the noise of the radio and so could the dog.
Anyway, he had started barking last night because next door dad was being loud in the garden. At midnight. And the kitchen/living room is at the back of the house. Suppose the dog was only doing what dogs do when they hear people shouting just outside the house. I was downstairs with him within about 2 minutes to stop him and thought I might as well let him out for a wee seeing as I had been dragged out of bed. As soon as I opened the back door, next door dad started absolutely incandescent rage level shouting 'shut the FUCK UP, control your FUCKING DOG, shut up, FUCKING CUNT'. It wasn't so much the language as it was the tone, he sounded unhinged. And this little rant went on for a while despite the fact that the dog was by now silent again.
They are the type to report everyone for everything that they can so I spent the next hour googling environmental health 5k fines for dogs barking 🤦🏼♀️ but I've come to the conclusion that there's very little that I can do to prevent my dog barking at midnight rackets right in his ear shot. It's not like he's out in the garden barking incessantly for hours or left on his own during the day. If I called him a cunt he would probably report me to the police!
They've got people over right now, and I know this because I can hear kids running and shouting in every room of my house, and the adults doing their usual cackling in the room adjoining the 'dog's room'. So here I am sat next to the bloody dog downstairs on the sofa again saying 'no!' Every time he pricks his ears up when there's shouting.
For balance, when I say shouting I don't mean that they're all arguing. They just shout instead of talking. All of them. I can put up with that, but not with being called a fucking cunt by someone who is annoyed by noise, but who created the noise in the fucking first place! They'll get worse when the weather is better too. I don't really have any resolution to this other than spending half the bloody night with my hand over the dog's mouth so that they can enjoy their loud social gatherings, as I don't want to hear barking myself either!
This was such a long post basically just to ask whether I am the nuisance neighbour with the badly trained dog or whether my dog is just being a normal dog and next door should shut up.