Get your water hose ready yell NO BARK let the water go will they neighbor let you ?
I totally trained my neighbor's dog to stop taking dinosaur sized dumps in my yard with the garden hose. Cleaning up after my own dogs is enough of a project thank you, I do not need more poop piles from a 125 lb. dog whose owner must think it never poops because her yard is miraculously spotless. When we moved into our house the yard was full of dog poop, the previous owner of the house did not even have a dog. We quickly learned it was the neighbor dog and I found the hose to be fairly effective at stopping that routine.
@Kris5902 Oh man, your post reminded me of an incident I will never forget, I have one dog that is a roller in all things gross (the aussie mix) and is a pro at finding an elk leg in the wilderness, and the other, well the other is the eater of all things gross. One day both dogs had wandered off a bit and were not returning when I called. I found them on an elk carcass, one was eating it, maggots and all, the other was rolling on it at the same time. We were living in a camper at the time and I was trying to get off to work and they both got a bath in the stream that was icy spring runoff. I hated them that day, but can't help but laugh (and cringe) about it now.