We just (kind of) successfully litter trained our 3 year-old Papillon. However, the past two days when he’s been going to the bathroom, he’s been pooping outside of the litter box close to our toilet. He’ll pee in there though. I can’t really scold him, because I don’t catch him doing it, because he doesn’t like when we watch him (obviously) and I’m just happy he’s going in the bathroom. So, my question is, what could be the cause of this and how can I correct it? Thanks!