The very last line in the famous Robert Frost poem titled "Mending Wall' -1914, goes "Good fences make good neighbors."
So, extending a fence out across the shoreline and onto the lake open water could quiet this situation.
Some very smart fence maker needs to create a "one-way fence" so's a waterfront homey can clearly see outward, straight through this fence, while it blocks the incoming view of that neighbor. ....so we can see out the big view, and they cannot see in ...
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