Do Chi's bite their own nails? I keep Chico's nails trimmed, but lately he has been chewing on/biting his back nails. I've never seen any of my other dogs do this, but then again, they weren't Chi's...Chi's are in their own little worlds...lol. Also, Chico had these little, um, I don't wanna say scabs, because they're not, they just feel like scabs, but they are white, things on the very very tips on the inside of his ears, what could they be? He's not due to go to the vet until August, but if they are something to be worried about, I will take him ASAP.