I know there's a million posts about pooping, but I haven't found info on my situation. I have a 4 year old male German Shepherd. When we tell him to "go to his spot", he does, and usually goes pee. The problem is that when we leave him out back in our fenced yard, he will potty anywhere he wants. We have tried walking the dog to his spot and giving the command. We have tried praise when he does. We have tried only letting him outside to go potty, no free time. We have tried escorting him to the spot while telling him to go to his spot, praising and treating for pooping there, then rewarding with free time in the yard. Every time he is attended, he will potty where he is supposed to (a large area we have marked off in the corner of our yard with visible lumber planks). But whenever he's out there alone, it's like he purposely will not use his spot. This is getting unbearable, as I desire to allow my dog unattended free time and for my yard to be my child's play area, not my dog's toilet. What else to I need to do to get this dog to poop in his designated area ALL the time, not just when our eyes are on him? Thank you for your advice.