Not to sound like a crazy-cat person, but I'm quite impressed with the progress Sake and Pez have made in the past few days. For awhile, I was beginning to think we'd have to accept a life of keeping the cats separate. But a few days ago, Pez was hissing noticably less and just seemed interested in Sake. So we left them out in the same room. There was some stare downs and some slight hissing but when Sake got bored and started playing by himself, Pez seemed to realize "Hey...this little shit could be kinda fun to keep around." And they've been hanging out ever since. Sure, Pez has those moments where I question if he's trying to eat Sake, or if they really are just playing. And he was visibly pissed off when Sake used his litterbox for the first time. Other than that, they're cool, which is a huge relief. Coordinating the whereabouts of the two cats at any given moment was getting to be a real pain in the ass.