Anybody got one of these? I'm looking for advice on feeding. Our Greyhound boy was adopted by us at the age of eight, and he's now 10 and a half. He's going to lose his final four teeth on Friday. The vet's said they can still eat with no teeth, but how, and what? We currently feed him on a mix of two kibbles. I hate the idea of the poor boy ending up with no teeth, but his remaining ones are no longer serving any purpose. Also, he's in pain.