The neighbor's dogs keep pooping on our lawn. Sometimes on the driveway. It's disgusting, and I'm afraid to cut the grass again because last time it went over the poop. I haven't caught them in the act, but they're the only dogs on the street, so I know it's them. What should I do? I fear the neighbors are the type to seek revenge by being really loud and obnoxious, so I don't want to start an all-out neighborhood war.