Brilliant Jeff, I thought that might be your spies when I spotted the glint of sunlight on binocular lenses!
Thanks very much Pete. Re: the neighbours, there's an old saying about making your own luck. In the past over many years I've suffered difficult neighbours, but have developed a way of preventing that occurrence. Whenever a new neighbour moves in I immediately introduce myself and give them a very warm welcome and offer of any help required. I also seize any opportunity to be of some service to them, for example putting a chock in the sprung outer door jamb to help them when moving items in, and giving them a lift with heavy boxes and the like. When they've moved in they always have huge amounts of packing to dispose of, which I take to recycling for them.
Later I take any opportunity when they are passing in the hallway and another neighbour is around to introduce them by first name, so that everyone knows each other on first name only terms.
One going away for a few days? Feed their moggie etc, keep the letter box clear. Emergency, lost their doorkey, got a water leak, flat battery? Fix it or alleviate.
All makes for a happy and harmonious block.