Long history of shite with my neighbour's. I've posted before about them parking like knobs, threatening my cat, threatening to come into my property etc. I've had the police involved. Wife likes to glare through windows and over the fence like a weirdo.
Parking wise they have mostly been staying within their own spaces recently except for their visitors which park on mine even if neighbour's have an empty space 
and sometimes the husband will briefly abandon his car at silly angles over my space but rarely for more than ten minutes. Not sure why he can't just pull on over to his own.
Anyway, today I have come home and the wife has suddenly decided she is parking with the end of her car hanging over into my space (there is loads of space at the other side for both their cars plus a third if they had one.) she left after about 5 minutes and I thought it was for some logical reason that she needed to park like that. But no, she has been and gone twice again and parked exactly the same way each time. The husbands car isn't even there so it isn't a case of having no space.
So I am taking this as the female equivalent of dick swinging. She is trying to goad me into reacting to this. There is no reason at all for her to park like this other than to show me that she can.