My neighbor who lived across the street would let his dog out and it would poop on my grass every single day. Once I confirmed whose dog it was and I also confirmed that he was aware of what it was doing, I began using a shovel to launch the poop across the street into his driveway. He walked outside one day just as I was launching one of his dog's deposits across the road and he watched as it splatted on his driveway. I smiled and waved to him and put my shovel back in the garage. His dog didn't ever do it again.