@JWBB said:
It is your behaviour that requires modification here, not your neighbour’s.
You’d be surprised at how many people agree with Costa. Nobody want to be, for instance, daydreaming when they are looking out of their own window, only to realise the person across the way thinks they are a Peeping Tom.
Perhaps Costa could send them a friendly note saying that he can see right into their kitchen and sometimes sees more than he would like … just so they know.