Something isn't right...

For the most part, all of my cats (two boys - Kirin and Sushi; two girls - Kimi and Maya) have all always gotten along. In the last few months though, I've noticed Kirin picking on Kimi with increasing frequency and increasing nastiness. It used to be an occasional swat, but lately it's gotten to the point where he chases her all over the house. When he catches her, he hurts her - usually biting what he can and "kicking" her. Her reactions have gone from a slight swat in return to full-on in-pain howling.

I don't know what changed between them. For the longest time, aside from the extremely rare swat or hiss, they ALL got along. Kirin gets along with Sushi and Maya just fine, as does Kimi. He just does not like Kimi at all.

I'm not sure what to do. Our current house (as well as our new house) is very open so it is impossible to separate them when I'm not around. Unfortunately, I'll be around even less in another few weeks as I will be returning to work full-time. Kimi's demeanor has changed drastically. She used to be very friendly, sweet and affectionate. Now she's stand-offish and skulky. I hate seeing her like this. And as horrid as this sounds, it's not like any of my cats are older and nearing the end of their existence here. Kirin and Sushi are almost two and the girls just turned one in February. They've all got loooooong lives ahead of them.

I don't want my sweet Kimi cat to be miserable for the rest of her life because of Kirin's weird vendetta against her. But what do I do? I've never had to deal with anything like this before. I don't want to give her up (I'd have Maya go with her - they've never been separated before), but I don't want to be selfish and keep her here if she'd be unhappy... which she clearly is now. I think her peeing in the kitchen may be attributed to this (medical reasoning has been ruled out).

So what do I do? I love my cats. I want to do what would make them all as happy as they deserve to be. Advice?

Hmm, has Kirin been to the vet? Everybody's neutered, right?

Hmmm... did this behavior start when Aidan came? Perhaps a little de-stresser like Rescue Remedy in their water might do the trick

was going to say the same thing ! a new baby new stresses rule out any med issues and as a wise man once said.....when the impossible is ruled out what ever is left no matter how improbable must be the truth, btw had the same issue yrs ago with 4 siamese after my daughter was of an age to interact it went away hope that helps

I was thinking of
--Rescue Remedy
--Feliway
--Contacting the pet psychic that several of have used.
Honestly - the Feliway will probably cost you MORE then the Psychic without guarenteed results.
If you are interested in talking to the Psychic - (and I know it sounds crazy but it WORKS) pm me and I'll email you her address.

Everyone is fixed, yes.

And no, this started before Aidan and has only just exploded in frequency and intensity within the last few weeks.

The Found Cats have thier little spats, but I can say that they ahve ever have a feud gainst one Cat.
I hope taht you can get them to being friends again, as it sounds as though that Kirwin is not having as good a quality life, with the Other Cat being so mean.
We are praying for peace.

No more thoughts? Fixes? Interest?

I am sure you have tried to stop the fights... but something that sounds strange, but has worked for me...

Next time the agressive one attacks the victim, YOU go after the aggressor. Yowl and hiss. Corner him and clap your hands, grab his scruff and hold him flat while you growl. (Be firm and careful not to hurt, what you are doing is being the alpha of the colony and correcting the behavior as a t'ed off mother cat would) Let him go when it is clearly You deciding to. Go to the victim cat and groom her. For the next few days give them both love and grooming, but make sure the ex-victim is greeted first.

It doesn't always work the first time or if there is a big underlying issue, but it usually straightens out the problem.

Again, you have ruled out medical issues which should of course be checked first. Be careful and firm. Good luck.

do you keep a squirt bottle of water or canned air or a can of pennies/screws/bolts etc on hand?
Kloe knows when I pick up the squirt bottle she'd better back off from Kylie or she risks the wrath of Mom.
Canned air more $$ of course - just as a last resort if the water doesn't work.
Can of metal items not thrown at the offender just in the general direction. I tried this also for Keegan when she was a puppy to distract her from doing something she shouldn't.

barncat, I have tried going after Kirin. It stops that particular attack but within another hour, he's after Kimi again.

shais mom, Kirin LOVES being sprayed with water. I tried adding vinegar to it, that didn't bother him either. A can with metal in it doesn't do anything but put the kabash on that particular attack, but like when I go after him as barncat suggested, he's back after her within an hour. To be honest, I haven't tried pressurized air, but I can't imagine that having any different affect than the water or going after Kirin.

I'm sorry if I sound whiny but I've been trying to fix this for the last couple months, once I started noticing the increasing frequency of the attacks. Couple that with issues with Samantha, the stress of house-hunting, and the pressure of getting your house ready to be put on the market, and a very sick baby, and I am at my wit's end. I've tried everything I possibly can, but I'm beginning to think that my sweet Kimi would be happier elsewhere. :(

When Samantha first came here, she had been here before Amy and Giz, only they didn't know it. To Samantha, they had invaded HER territory to she was trying to show her dominance or place in the house by attacking Amy every chance she had. Amy I felt was not able to defend herself and she sure couldn't take the stress of constantly being attacked. I tried all the things everyone else has suggested to you and like you, none of it worked. So then, I decided to try someting else.

Whenever she would attack Amy I would scold her, pick her up and put her in another room by herself and leave her in there with the door shut. I was consistant with it, EVERY time she attacked, she was put in a room by herself with the door shut... It only took 3 days for her to make the connection and the attacking came to a screetching halt.

Cats don't like being in a room with the door shut... they don't like being isolated and what does the Mama cat do when they act up.... she pushes them away, out of the litter, away from the rest. Try that... if you don't have a room, use a kennel but isolate the offender away from you and the rest of the household..

That sounds like great advize! I know my cats don't like to be isolated at all!

That is good advice, but I am working 6 hours a day right now and will be returning to full-time work (with a longer commute) within the next few weeks. I won't be able to isolate Kirin after every attack because I'll only be home for a few hours in the evening and on weekends. As you said, consistency is the key but it isn't going to be possible for me with these work changes coming up.

Not without screwing with their litter boxes, a change to which they all have demonstrated royally pisses them off and then we have kitties going to the bathroom NOT in the boxes.

I'm already nervous about the cats adjusting to the new house and that's still months away.