We live at the end of a road. Four the end of the road to where the state owns and maintains is about a half mile. Of the half mile we about a 1/4 mile, and the rest is owned by five other families. Where our road goes from gravel to pavement is a house. They people living in this house like to just pull out of their drive without looking. They HIT one of my neighbors one day. Think of the odds. There are 9 drivers living past this driveway and the nut job manages to hit one of the 9. She almost hit my wife one morning.
In my county if livestock is on your land you can capture and hold the animal. One calls the county and they come out and take the animal. They then contact the owner and tell them that the county is holding the livestock. I believe the county charges a fee for taking care of the animal as well as a fine. It ain't cheap. A neighbor of mine at a different property was having problems with an idiot who owned sheep. The idiot had no fences but he was a lawyer as he like to tell everyone as often as possible. The sheep got caught, the lawyer got contacted, and fee/fined. Fence got built.
I do believe that you do reap the seeds you sow. It just can take some time.
I once dated a girl who spent two years in Japan teaching English. She had a loud party one night that disturbed the lady next door. The lady next door pounded on the wall but the party continued. The next day the lady knocked on the GF's door. The lady had a basket of fruit. Fruit baskets ain't cheap in Japan. She gave the fruit basket to the GF and and apoligized for HER behavior the night before. This act totally SHAMED my GF who never disturbed the neighbor again.
Not sure how you can shame your neighbor he sounds like a twit. Maybe bag up the trash you see him toss on the road and put it on is door step with a note saying you found his trash on the road and figured you might want it back. I doubt he will be shamed but who knows.
Another one of ours neighbors who has more money and arrogance the sense has his garbage picked up by a company. Best I can tell they are the only ones in the area that have this done since the garbage drop off is near the only two place to get groceries. The neighbors drive past the garbage drop off twice a day. It is VERY convenient to say the least. They have one big garbage can but need at least two. The lid is never shut on said can and trash blows out all of the time. They also stack garbage next to the can and it blows around as well. These are two college educated people with high paying jobs so you would think they would know better. They don't. Most of the trash blows back on their land so I just leave it alone. Its kinda funny.
These people do not have a good reputation around here. I think they now have problems getting contractors to work on their land. A neighbor calls them the aquaintences. Your reap what you sow.
Later,
Dan