8 hours is too long to hold it in! (yorkies are small you and have very small bladders)
i think you need to use a pen and provide a pee pad so he can use it when he needs to.
as for not going potty in the AM. he probably just doesn't have to go yet. milu usually doesn't have to go in the morning either. if i want her to go potty than i would need to wake up earlier and walk her, and then feed her. after she's been moving around, she should be able to go to the bathroom. |