That is the dilemma. If I remain silent and shoot the dog, others can wonder what happened but never really know. But if I raise the issue with the neighbor, and afterward the dog disappears, it becomes much more obvious what took place.
But in this case I did commit to talk with the neighbor if it repeated. btw, yesterday the whole thing repeated ... the dog was back. Same exact problem. So that makes two days in a row. I don't have my pictures ready, but I will have them soon, and I will be talking with the neighbor soon.