I had a dog that was a shit eater. I would see it coming on our walks and tell him no. You could see it in his eyes that he was going to grab it and go. It was a game to him. So I went turd hunting without him. I live in the country so there is a nice selection. I dumped them in his bowl the look he gave me was priceless. After that I would ignore him while walking and he never ate another turd.