i recently brought home a new 5month old cat. about three days after we got him he unrinated on our couch. the next day i took him to the vet to get neutered and declawed. while i was there i asked the vet if his behavior would continue after the surgury. he assured me that it wouldnt. while he was there over night, one of my other cats (a 2 year old female) unrinated in the same spot he had. when we brought the new kitten back home he did stop untinating, but my other cat continues to unrinate on the same spot. we put plastic over the couch and cleaned the spot as well as we could but there seems to be no stopping her. if anyone has any suggestions please let me know, otherwise i am forced to get rid of my old cat :0(