I adore my cat - she is 13. She is a lovely sweet adorable affectionate little sweetie, but even SHE can be a pest some days. Following me about everywhere, tripping me up, and standing in the doorway so I can't get past. And she has some days when she won't settle at ALL, unless me or DH lets her sit on a pillow on our lap! She wants to sit there for 2-3 hours. It's very restrictive.
Also, she still claws at the furniture sometimes with her claws, (and the carpet too,) despite having 3 scratching posts. She also has an annoying habit of leaving the food we put down, around 20% of the time! I have lost count of the amount of times I have scraped good food into the bloody bin. And I won't put it outside for other cats (or hedgehogs) as we will have dozens of the neighbourhood cats hanging around all the time!
Our other cat who died a year ago (and was 16,) was similar with the scratching, and leaving food, but she would constantly begging even when she wasn't hungry, and follow us into the kitchen EVERY time we went in. She was not affectionate either, and would claw you if you tried to pick her up. Weirdly though, she would come to US for a fuss, on HER terms.
In addition, the two cats have cost us some two thousand pounds in vet bills in the last 2 years. Pet insurance became extortionate some 5 or 6 years ago, like £85-90 a month, so we stopped it. We haven't paid it since 2016, but it was still a huge financial wrench to have to fork out two grand in less than a year!
I have loved our cats - and still love our current one - but once she is gone, we won't get any more. We wouldn't change a thing, but I can't lie, they have been hard work sometimes, especially as they get older, and we can't go anywhere without having to pay someone to look after her. (All our family is 20+ miles away.)
And as I say, the vet bills are a kick in the bollocks. (I am not bashing vets by the way, just saying that it's a lot to fork out unexpectedly... I'd say the same about a car repair, or house repair or whatever...)
@mycatisannoying So yeah, I can sympathise. It must be especially annoying if your cat is super annoying and you actually can't stand it!