One thing I did notice while at the vet's yesterday was that Scooter really is deaf. I wonder sometimes if his hearing is selective (how does he always know a can is being opened?). However, while waiting for the vet to finish with an emergency, I heard bloodcurdling yowls coming from the back. Some other cat was not happy at all, and Scooter didn't even seem to notice.
At night when he's in the kitchen by himself, he sits and yowls. I feel so bad that he can't hear me call his name anymore. I had never thought before about how being deaf can really isolate a person or animal.