My brother-in-law, Doug, had the same problem except his neighbor walked a big dog around their shrubbery and sidewalk ignoring many warnings to stop it. Doug was a business man and, as such, wore a suit and tie to work every day. One morning he went by the flower bed and stepped up to his knees in dog poop. He let loose with some foul language that could be heard in the next county and vowed revenge. Early the next morning he opened the drapes in the living room and sat in a recliner drinking coffee. He saw the neighbor come over and walk the dog in Doug's front yard again. As the man was taking the dog back home, Doug went out, scooped up the poop in a shovel, and marched over to the man's house. He rang the doorbell and the man answered. Doug said, "Watch this," as he walked into the man's garage. He came outside just as Doug dumped the poop on the hood of his new Mercedes-Benz and slammed the shovel down on top of it with poop flying everywhere. Doug called him some bad names and said, "I told you not to walk your gd dog in my yard and you wouldn't listen. Maybe a pile of dog ---- and a dent in your hood will help you remember." That stopped the problem completely.

Sometimes a man's gotta do what a man's gotta do.