About six months ago I had a new fence built that runs along the back of my property. I live in an OK subdivision - most homes are over $200k. The old fence was about ten years old and about 40% rotted. I approached my neighbor before building the new fence and asked for their permission to replace the fence with modifications and he agreed to pay half of the cost. The real problem is his dog though. The neighbor's boxer is regularly left in the back yards for hours at a time. She will jump up on the fence and break or knock boards down. This creates a dangerous situation because the neighbor has a pool and I have two children that cannot swim. The boxer seems very territorial and will get up on the fence anytime I let my yellow lab outside to do his business. I have always had to be the one to purchase and replace the boards. The neighbor has never replaced a board, and this happens at least once every month. I expected the new fence and a rot board (2"x10") would prevent the boards being knocked down but that just hasn't happened. Oh, did I mention that he didn't pay his half? Instead, I just have a new fence that keeps getting torn up. So, I came home today to see two boards missing, and now a second dog! My neighbors don't seem to care that I have small children that cannot swim or that their dog(s) is constantly destroying the property. Short of killing their dog (I wouldn't do that) or buying a new house, I need ideas to remedy this situation before it gets really nasty.