First off I'd like to thank you all for your advice and continued support. The NH Knotties are clearly the best around.Today DH and I had to make the difficult decision to put our cat Rocky to sleep. After discussions with the vet and observing his behavior, we decided that this was in the best interest of his life. This was one of the hardest decisions I've had to make and I don't wish that burden on anyone. Thanks again for all your support ladies!