The offending players, my very unstable cat household:
Tessa - 13 years old, skittish, hates Kayla, frequently get beats up by the boys (she is our pariah cat)
Kayla - 9 years old, psychokitty, tolerated by the boys, hates every other human other than me, scared of everything & everyone
the boys - Julius (? years) & Squishy (7 years), pretty much run the household after my alpha cat (Tatjana) died
Cleo - ehhh, she doesn't care about any of this as long as she has food
Tessa spent a long time living in the laundry room. She prefers this - she's the queen of her own little domain, still gets to spend time with me, has her own food and litter box and doesn't get beat up. (If she's out, then the boys either won't let her into any of the other boxes or beat her up.)
Kayla - Somewhat OK if I keep her medicated on Elavil for anxiety. Still hates all people other than me, my kids call her "the mean kitty", runs in sheer terror if DH walks in the room. Needless to say, he hates her because she's so psychotic. Frequently has a problem with inappropriate elimination (no UTI or medical reason) which is helped some by the Elavil, but not completely under control.
Bottom line:
Tessa stays in laundry room - sometimes the boys still scare Kayla so much that she poops everywhere. :gah
Boys in laundry room - WWIII between Tessa and Kayla at night, so more poop (from Kayla) in my dining room.
Kayla in laundry room - She freaks out and won't use the box in there, so poop on the bathroom floor. And the boys won't let Tessa into any of the other litter boxes. (No matter how many boxes there are, they beat her up so she's scared to leave our bedroom. And there's no place for a litter box in the bedroom.)
Well crap, there's nowhere else to isolate another cat, short of moving one into the garage. Which we've done with Kayla temporarily before, but winter is coming up. And DH is so so so done with this psychotic cat who hates him (and everyone else) and has litter box issues. She's almost out of Elavil right now, so I need to take her back to the vet. But I'm not sure her dose is high enough, and is it fair to keep animal permanently medicated like that? But if she were to go to a shelter they would put her down, she wouldn't be considered adoptable. I've tried adding more litter boxes, I've tried isolating and gradually reintroducing Tessa, I've tried isolating and gradually reintroducing Kayla, I've tried Feliway diffusers, I have Kayla in (I don't remember the brand) a pheromone collar. I'm really at a loss here, and feel like I'm running out of options for Kayla.
(But at night, when the kids are in bed, she comes and snuggles with me on the couch and is almost like a normal cat. I've lost two kitties to cancer in the last year, so the thought of losing another cat just breaks my heart and she's the only cat I have left that is a cuddler.)
Any ideas?