Different ones this time!

I live in what's now considered prime rental property type (maisonette/ apartment). Owners are 60+ (including me). Renters younger, some couples, some singles. Problem is one couple where his parents own property (not joined to mine).

Girlfriend thinks world revolves round her with no consideration for communal access, privacy in garden, general respect for their neighbours. As expected, her partner supports all unacceptable behaviour. If you dare make a point, his language is threatening. He smokes and throws away cigarette ends on communal carpark, driveway and front gardens. Despite being told by another neighbour and his own father, he's restarted this.

On Saturday morning I wanted to photograph flowers in my garden to show my housebound mother. Stepped outside with camera just as neighbour's dog appeared at fence, where flowers are. Didn't notice she was in garden pegging out washing. Dog barked, she turned round and started shouting abuse at me for photographing dog. Said it was nothing to do with her and despite saying I wasn't, she was convinced I was invading my neighbour's privacy. Her partner came out and started swearing/calling me names. When told him not to speak to me like that, he said " let's see what you can do, bring it on!"

I then came inside, shaken and have not slept well since. Knocked on dog owner's door but he didn't answer. Still feel I should explain to him. Dog keeps looking over fence but he's now quickly calling it back inside.

One course of action is taking out anti-harassment order against them. In England, need at least 2 instances to get one, which I now have. Could be inviting a whole lot more trouble though. Have written down what happened. Want to discuss with another neighbour who has also experienced problems to get his view. I wish I could afford to move!