One thing I would do is call the police and report what that this loser is harrassing you. That way, if the situation became escalated, there would be a record on file of what he's been doing.
My husband would tell the guy the dog isn't one he should be worried about!
ITA!!!
well if you think he's too crazy for the cops maybe you can ask your husband to take a video of him provoking while you walk the dog so if anything does happen it'll be like "well why were you poking the dog, crazy?"