I have 3 cats, Cressida is our new baby and we love her dearly. The problem come with our other female, Raelyn. She HATES Cressida...I mean H A T E S. Now I know sometimes we can't all get along but Raelyn is now defecating and urinating outside of the litterbox and I know it's because of Raelyn. I'm all gung-ho to get her her own litterbox but I live in an apartment so how will I make sure it's hers and only hers and do you think this will cure the problem? She's perfectly healthy, she's affectionate with her human's still but she hates the new cat. We've had Cressida since early February and at first she hadn't been spade because she was just a baby yet, she's since been spade and I was kinda hoping that would make a difference in Raelyn's attitude towards her but it hasn't. Is there any way to get RaeRae to loathe her less? I hate seeing both of them being so upset with each other while my Thomas just rolls his eyes at both of them, and then goes back to licking himself. He's so laid back. Anyhoo...thanx for any and all help you can give!!