Believe it or not, I used the stern “you’ve been a bad boy” voice immediately after our GSD came in from the yard with poop breath (yuck!). Took about a week for him to make the connection, but he’s a smart boy and doesn’t like to be fussed at. The trick is you have to be right at the door waiting for him/her and willing to smell breath EVERY time. First, reward with a small treat and praise every time he/she comes in from the yard with fresh breath. Make this a big, special moment with lots of petting and “good boy/girl!” talk. Then, on the occasions when he/she comes in from the yard after eating the poop, use the stern voice featuring the word “poop” in your sentence. Example, “bad/boy/girl. No poop!” (always say exactly the same thing). Immediately after scolding send him/her to bed or isolate from the family pack for a few long minutes. This worked for me. Our Titan hasn’t eaten poop in 4 months. Keeping my fingers crossed!
