I adopted two sister cats 4 years ago and we love them both very much. They have been spayed and declawed (dont judge.... they are strictly indoor cats) However for the past 6 mos or more one cat (Cuddles, a very loving socal cat) has stopped using the litter box so when I come home there is little cuddle gifts for me to clean up (thank god I have tile) We have gone the vet and there are no medical reasons. We seperated the litte boxes and food so that each cat has there...