Ooooohhh, I bet he was ticked off!!!!!
I guess it proves the 'rubber band theory'. Sometimes it stings the other person, sometimes it breaks and stings you!
I can't have much sympathy for the neighbor that made trouble for you over a 4" technical violation. What ever happened to "live and let live"? It's not like that 4" encroachment was making his life miserable or anything. Now if he was having to listen to a barking dog all night long, or had a security light shining in his window all night...those might be valid reasons for complaints. I imagine artillery fire would be a bit disturbing too.