I had to end one last month. It took one shot, 00 buck 10 steps. It was a neighbor's dog behind us (pitbull).. This dog has chased kids, hurt other dogs and even tore up most of the back side of my fence. I have spoken with this guys several times about his dog almost getting through my fence. Basically warning him I will kill every 4 legged animal that makes it through my fence into my yard. I couldnt BBQ, hang out or nothing of the sort in the back yard due to the doggy door he built onto his house. The dogs he had would be at the fence barking. Well, me and wifey were hanging at the firepit when he finally made it through. I had enough time to get the Benelli and make it back out when he was 3/4 way through the fence. I waited for him to clear my fence line and took the shot. The guy called the police on me for killing his dog, but they told him he should have secured it before entering my property.
And on a side note. The pit was hanging with the other 3 dogs for years without killing them. They were a pack and the pit was the leader. And happily, the rest of them have been silent since.
No disrespect intended, but you should have called the police IMMEDIATELY after you shot the dog. Whoever calls 911 or police, by default, is assumed the victim until investigation reveals otherwise. So, when your neighbor called the police on you, they probably thought you were looking for trouble until they realized what happened, hence "you should have kept your dog in your yard."
However, I do applaud your actions.