Man that just sucks..with neighbors like that, who needs enemies..but then he is a coward of an enemy. He sounds like he needs a lesson in respect. And a second lesson in respect for his neighbors. If your presence at his front door doesnt command respect, then maybe grab a few friends to help reinforce the point. In my neighborhood the homes are of equal value you said yours are, when I moved in, my neighbors thought since I was the new guy, they could tell me how to act and what to do, that got cured quickly with a very forward conversation about boundaries and privacy. All but one took the message to heart, one was persistent on being a total douche, which turned very quickly once I invited my brothers over for a cookout. It's all in the presentation and how the message is delivered. I guess they thought since I was a suit and tie wearing guy (which is what they usually saw when I left for work and came home), that I would be a push over. But then I made sure they saw the HOG riding, massive 4x4 driving after hour and weekend me and my friends. The message became loud and clear that when someone pried into my business it was unacceptable, now we all get along great.