12 years ago, at our last place, we had 5.5 acres at an intersection of 2 main dirt roads, and not far from a heavily travelled paved road. We didn't fence it because the county said they were going to build a new 6 lane road that would affect our South & East property lines and they would not do any fence work. People from town were always throwing out both dogs and cats and we kept 3 dogs and a couple of cats, the rest we called the animal control or took to the nearest shelter.
During this time we had a neighbor who's teenage son got a Rottweiler that ran loose and killed everything it could get to including 2 of our Yorkies that I had out for a walk and was within 20 yards when it hit them. I talked to the neighbor who I was on good terms with and he said he would get rid of the dog. Well he didn't and a week or so it later went to another neighbor ladies house and killed her 2 goats and one of her dogs and tore up another of her dogs costing a fortune in vet bills.She talked to him and again he said he would get rid of the dog but didn't. A week or so later another neighbor who had an Australian Shepherd that was in her first heat cycle and kept in the house, his place was fenced and the Rot dug under the fence, tore the screen door off the house and drug the young Aussie out in the front yard and killed it in front of their 2 young daughters. Again he said he would take care of the dog but didn't. A week or so later it came back to our place and killed a young lab. mix that we had taken in as a drop off.
This time I had enough so I went over to his place with my .270 and told him " If you want to do it here's the gun, if not I'll do it". He said "I can't" so I Did. End of problem. We still waved when we saw each other but it wasn't a warm relationship after that.
Just before we moved his son got a pair of American Bulldogs with plans to breed them.One of our old neighbors, who I'm still good friends with told me they are often out and running through the area but haven't caused any problems yet as far as he knows.
Some people should not have dogs and are just too dumb to know it.