Aggressive cat

SO1

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Parents cat has become agressive. Absolutely fine with my parents. So far fine with the carers.

Not fine with my sister, myself, BIL and was very bad when my parents had visitors for a meal in the garden. She came outside and stood there hissing at everyone. As there was a child and a baby my sister had to get Missy and take her inside and shut her in mum's bedroom.

At first we thought it was related to my sister's dog. My sister brings her dog when sister and BIL stay the night. But we get attacked when the dog is not there. She either hisses when you walk past or will reach out with her paw to scratch you.

When my BIL was looking for a cat for my parents he deliberately got one that was used to dogs. My sister used to have a cat so her dog is used to cats.

Cat was fine for the first year mainly would run up stairs if anyone came round. Now she comes down and it is hit and miss if she is friendly. I was attacked when doing a jigsaw. Cat jumped up on to table came over sat on jigsaw then went for me and ended up getting her paw caught in my hair. My sister gets attacked the most. BIL only occasionally.

My parents previous cat also used to attack people and we had to put up a beware of the cat sign. Unfortunately we did not bring the beware of the cat sign back from France as we didn't think they would have another cat.

I don't think it is anything to do with my parents behaviour as they have had cats that have not attacked anyone. It is just this one and the one before who they had for 23 years. All cats that have not got run over have lived into their 20s.

Missy adores my parents and they love her. She was an indoors cat for first year but this summer she is going outside as well. When it is hot mum leaves the door open into the back garden and she will sit half in half out on the door step or come outside if anyone is sitting outside. It is the perfect home for a cat. Two old people who rarely leave the home and dote on her. Nice enclosed back garden. Ad lib kibble in her automatic cat food dispenser. She doesn't like wet cat food human food, meat or fish. The house is always really warm. My parents are in bed a lot and she loves to snuggle on their beds or sit with Dad on the sofa. When I stay the night she is fine with me if I am in the spare bed in mum's room she will come and snuggle and be friendly.

Last weekend I stayed the dog was in the garden as my sister and BIL were also staying the night and the door was open and the dog could not come back in as the cat was sitting in the kitchen near the door and the dog was too scared to come in. She has never attacked the dog before but last weekend did. She went up to the dog hissed and then tried to scratch her.

The plan is that my sister and BIL and their dog and chickens will probably move in with my parents if their health deteriorates to the point that they need someone there overnight once we get the extension done. However we want it to be harmonious with Missy cat. Thankfully she is not attacking any carers or cleaners but Missy is mainly sitting with Dad on the sofa when they come and not in the kitchen. She only attacks us in the kitchen, on the stairs or on the landing.

When we first got Missy she was very shy and used to spend most of her time upstairs in mum's bedroom if anyone came round She is bold now and always downstairs if my parents are downstairs. I think she has become territorial and we wonder if it is because she was a rescue cat. The rescue had her because the previous owner was a having a baby and didn't want Missy anymore. So she might associate people coming round with being taken away from her home.

My parents thought they were too old for another cat but we thought they could do with a companion and mum was really depressed and wanted a small black female cat. My sister said she would take Missy if my parents passed away before Missy did or they needed to go into nursing home.

Is there anything we can do to stop Missy attacking us. She is worse than my parent's previous cat who would only bite or scratch if you tried to stroke her, she would approach you and go all round your ankles making you think she wanted a stroke or a fuss would let you stroke her and then bite. We think with Mimi she was getting over excited. She would not bite or scratch if you walk past or approach you and start hissing. But with Missy we are thinking territorial or perhaps she feels stressed when we are there and prefers it quiet. I wonder if a plug in fellaway might work.
 
Pretty much every cat I've had has hated visitors, but usually they make themselves absent. It's worth trying the fellaway if you've got a house full of people.

My old cat (another Missy) was a stray who adopted me and i used to ask people to keep their distance. She was tiny & cute so people wanted to stroke her - she'd strike first.
 
Cats are complex little creatures. They’re not really designed to function in our noisy, chaotic world and that can lead to them getting stressed / conflicted sometimes.

It sounds like now she’s bonded to your parents and in a routine of being downstairs with them her desire to be near them is sort of overriding her anxiety about being in the same part of the house as strange humans and this is probably making her feel quite conflicted sometimes (It is a bit odd that she’s not doing this with the carers who are a more recent addition than you, your sister & BIL who have popped in on a regular basis for quite some time but it could be that their visits / routine is more predictable so she feels more ok with it?)

Would say that Feliway diffusers in the areas you’ve identified as flashpoints would be a good starting point as highly likely there is a stress component to this but that might not be the full story.

Cats can also get quite protective about resources that they see as valuable which again could be why she’s worse in certain areas of the house.

It could be worth providing her with some places where she has the option to hide and observe, ideally from a height downstairs (would suggest giving her at least 2 different options) although you’d need to be prepared to remove / rejig if she decided to use them as places to launch attacks from.

Looking into puzzle feeding / hiding small amounts of food in different areas for her to find might be worth a go from an enrichment POV if there’s a boredom / frustration element to any of it, although I seem to remember due to your parents needs she has an automatic feeder so this might have to be something offered as well as rather than instead of that option.

Would also suggest getting some wand toys and trying to use them to redirect her away from areas that she’s guarding in a more positive way than having to pick her up if she’ll engage with them (most cats dislike the lack of control caused by being picked up). Trying to incorporate some play with these sort of toys as an outlet may help in itself as well.

If things continue to escalate it might be worth consulting a behaviourist for suggestions on how to manage things & how to make the transition of your Sister & BIL plus dog moving in as smooth as possible but obviously that comes with extra expense.
 
First things first would be a trip to the vet to check for obvious things, I’d probably also do a comprehensive blood panel, and a trial of pain killers in case she’s unwell or in pain. Once anything medical is ruled out, then you have to look at behavioural reasons - cat’s don’t just become aggressive for no reason.

Jackson Galaxy is a cat behavioural specialist, and has some wonderful resources and clips from his shows which outline and explain cat behaviour to the lay-person, along with how to fix it. I would very highly recommend watching some of his content and seeing where Missy’s behaviours overlap with his examples.
 
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