This neighbor has threatened you, i think you need to make out a police report, so you are on record as having been threatened. Usually when you file that report the police go and talk to the neighbor about the threat. That usually quiets the situation. If the neighbor ever speaks of resenting that you got the police involved, all you need do is point out that they threatened violence and you have a right to your life and happiness within the law. As for the dog, its not responsible for its neighbors stupidity, at most I would just call animal control. You have the law on your side. Best of Luck