negotiations with neighbours

To start afresh, in a new land, in a new way, requires that negotiation be the paramount preferred skill utilised ... so on that basis, and without reference to any of the other failed communications that are going on, I have failed dismally already.
Rob, from next door, stuck is sticky little nose through the fence to say that:
a) no communicating with Ky without supervision; and
b) he was rescinding my 'privilige' to pass through his garden to access mine.
WTF!!!???
Seems that:
a) he had been approached at the local library, and been asked to prove that he actually had a child, so as to be allowed in the childrens' section. Clearly this caused his repressed memories of when his father used to interfere with him to resurface, and giving him the excuse to refocus his angst/anger at some sort of nebulous bogey? More interestingly was when I agreed, but asked his reasoning why, to which he initially tried to stick to the line of 'You know, I do not have to explain myself'. So I replied along the lines of "For someone who says so much, you do not actually say much" ... and,
b) seems he took exception to me cutting down the Chinese Elm out the back, and then pouring the waste kero on it from when I had cleaned the bike chain earlier ... tried to use the 'Weeds have their place in the world too' psuedo-hippy-love crap, but he was the only one referring to weeds. So he tried the initial approach of 'My house, you no pass through', followed by 'Your rent does not include a back yard'. Unfortunately, it is screened off from 'his' yard, and has a lot of waste bamboo in it ... wonder what the reaction would (will?) be if I was to return the waste to where it sprung?
Hmm, certainly seems good to have something else to take my mind off the other dramas going on around here ... ;)
He sure does whinge and whine a lot, it has to be said ... However, what is most ludicrous is that he sprouts forth all this nonsense about respecting boundaries, being good neighbours, and then tells me to 'piss off' when I point out that he is to start using his front door more, as he encroaches upon my quiet enjoyment of my property when he so noisely uses my access to go through his back door ... oh how easily the thin veneer of respectability fades when the bully is confronted ... Certainly Ky looked most confused and concerned, poor bugger ...