I just got a 3 month peekapoo puppy (half pekingese and poodle) two weeks ago. Since then I've trained him to go potty on the training pads, however he only goes pee on them, he does no.2 where ever he pleases. And then when he does go no. 2 he eats his feces. How can I get him to use no.2 on the pads and NOT eat his feces?