Good (and tall) fences make for great neighbors. Stout locks are even better.
We have six foot fence between our two yards its like the tv show with Tom the tool an the next door neighbour at the fence where you only see the top of his head but I am 5ft 2 so they can't see me apart from the spaces between each paling. My granddaughter has been pet sitting Ftse why we have been at a wedding and she said they are so nosey all they do is stand at the fence all day looking through. We have decided we are going to double panel the fence so no more gaps and we can get our privacy and peace back