Oh forget to tell you, OH waged his own war against a dementor this morning. Took the dogs to the usual place, which is woodland riddled with footpaths it also happens to surround a posh hotel bought by national trust. There is a big row going on over signage saying private keep out and posts being driven into the ground to stop anyone passing.
Anyway a man stepped out and berated him for being there shouting private land go away. OH said oh really I have walked these woods for x decades, the paths are marked on os map. You have no rights, umm OH said I am not walking on a path anyway this is an old road which became practically disused decades ago except by the farmer who uses his tractor to get around. But it is still marked as a road on OS map
The man blustered and said there is a private house down there, yep says OH it is owned by the hotel and the manager lives there. Then OH said see that house pointing up the valley I lived there for x decades so kindly wind your neck in.
Well it turned out the man worked for the hotel, knew little of the history of the village but did know there were rights of way, he was trying to bluff his way out because his boss was fed up with the walkers, joggers, and their dogs coming past his house.
I do not think OH will have anymore trouble from him 
You really need to stand up to these bullies whether they accost you face to face or on social media.