I swear I’m not the creepy neighbor (I’m actually the type of neighbor who hides from my neighbor when he knocks on my door). But I can’t be the only one who is dying to see a photo of the arena/fence line. I can totally understand why the OP isn’t comfortable showing it, but the images people have conjured up over the course of the thread have veered from dust bowl-like conditions to bucolic English countryside. I do feel this may be a “I have to see it to believe it” to see if the OP is really straining the limits of the local zoning ordinances or the good nature of her neighbor.
On the other hand, with the watching–I hate how some people have no skills at “being around other people without staring.” Sometimes on a nice day, I’ll be out mowing my lawn, and I’ve had neighbors watch me–like, literally watch me–mow the lawn. It is totally within their rights, I’m an adult, I would never complain. But honestly, I’m a small sweaty middle-aged lady in very old clothes pushing a stupid-looking mower. Just develop the skill of “looking elsewhere” or reading a book, for politeness’s sake!
I guess, as Robert Frost would remind us all, “good fences make good neighbors,” so at some point, that may be on my to-do list. I have a big fence around most of my property, but may need to invest in some more.