Foolproof way to keep dogs out of yard. Hi! I have a very rude neighbor who lets her dog poop in my yard. I can not get the area fenced in, because we are only allowed to fence in our back yards, per HOA guidelines. I have confronted her, and she denies it, even though I have seen her dog do it. She lets the boxer out of her house, and goes back in. A few minutes later she will let the dog back in. She claims the dog knows to stay in her yard. I have resorted to throwing the poop back over into her yard. I have reported her to the HOA, but haven't seen any improvement. I have tried everything that I know to do. I even bought a pepper spray type thing from Lowes to put on the property line. I do not want to harm the dog, because I am actually a total dog lover, and I am even willing to spend a couple hundred dollars for a permanent solution. My son can't even play on that side of the yard! The funny thing about all of this is.......we moved into this neighborhood about a year ago. Before we lived in a less desirable area, and we NEVER had problems like this. Just goes to show, money can't buy class.