I agree, lack of exercise. These little ones need to someone there to pay attention to them and walk them, play with them ect. Shadow is 8 months old and we are still working on the potty thing but he is getting it! I have 2 other dogs here and he won't go on the pee pads, he wants to be out there with the other 2 to do his business! lol So, thats what we do, we go out with the "big brothers" to pee and poo. We play with him all the time. (I'm home all day) There is constantly someone here that is playing with him or showing him attention. All our dogs get attention but since he is still a baby, he gets a little more than the older ones!