Well at our home in NY after months of please could ya if you don't mind diplomacy three things worked very well.
In the winter and summer the neighbor let his HUGE LABS deposit on our lawn. After about a week you could not walk in our right of way! Kids could not go out to play in the side yard
When we had snow I found out a Ariens Snowblower on full throttle cleaned up my lawn and made a very decortive landscape on his.
In the summer well a 150 mph leaf blower also worked well.
When the neighbor came over on my property to play tough guy, threaten and blame me for his rude behavior I found out my concealed carry permit in conduction with a 911 cell phone also worked well.
When the Dogs bit my son I found out a lawyer worked very well.
Soon there were no more Dogs! Cause the owner had a choice. Keep the Dogs and no homeowners insurance or lose the Dogs and keep homeowners insurance!
I do love Dogs. We have had many of them give us and the kids love and companionship. People can walk em love em enjoy em but keep their feces off neighbors property. And throwing it down the storm sewers is just plain revolting. It all runs down into the Aquifers.
But Opps that will start a bump on the need for clean drinking water filtration!