My rural area has had an influx of a dozen or so high dollar homes over the last 10 years, all, thank God, a mile or so down the road from my "compound." But we all have the same mail box area, all grouped together. It's used to be nice and tidy, and then gradually turned into a cluster of the new people's boxes at various angles and setbacks, the worst offenders making it impossible for the mail lady to drive up/reach out like she should be able to. Not to mention the county plow could no longer clean out underneath, It was driving me crazy, a big PITA for no reason, caused by these clueless new people with more money then common sense
I got together with my postmaster and he was all for a major re-do, so out they all came. No notice was given, I just took them all down one day, with the local postmaster behind you, you don't screw around! Then I set some pipe in concrete, offset to allow the plow to get under, and remounted all the boxes in a perfectly straight line, leaving space for MORE new people, who would otherwise screw it all up again. Point being, in the process of doing this, I had several brief interactions with these people, and once they figured out I was doing this not as a post office employee sub contractor but just as a local and a nice guy

I always made a point to mention I was the guy they MAY have noticed flying from time to time in the 'hood. This cost me out of pocket nearly $200.00, and about 12 hours of labor. There was rock in the ground, I provided the pipe and welding, and it all sits on pressure treated lumber, it's first rate all the way, and over 20 boxes. 2 days later they were all back up, and the postmaster had put a little note in each box "By the way, your neighbor down the road, through the goodness of his heart (and disgust with your mechanical and construction incompetence, no he didn't mention that....) provided his labor and material to get this done, how making a small contribution to help recompense him?
For the next week or two the money came pouring in! I think I actually made out pretty good on the deal financially, BUT most important I left a good taste in their mouth about the guy down the road with the airplane, whatever it takes. Plus I don't get pissed off everytime I pull up to my mailbox now.