Which behaviour of your cat you hate most?

Getting upside down under our bed and using her sharp ass nails to move around the under side. She does this to tell us she's hungry. At 6 AM.

Cat 1’s inability to understand boundaries with cat 3. He (cat 1) gets along great with cat 2, and he thinks cat 3 is also his best friend, but cat 3? She hates him (he doesn’t respect her boundaries). And he tries to play with her in the middle of the night which means we get woken up by hissing and yelling and whatnot.
I love cat 1, don’t get me wrong. But he’s like a big dumb puppy in the shape of a cat.

Screaming bloody murder at 4 AM then hiding under the bed like a menace when I open the bedroom door to let her out

He only sharpens his claws on things I don't buy for him to sharpen his claws on. He is otherwise very well behaved, good with people, and extremely cuddly. He's the sweetest and I love him....but I wish he would stop ruining my fucking furniture.
- Furniture is just a depreciating material possession. Love is priceless.....
- Have you tried those scratch-guard things? It's like some kind of clear plastic you can apply to the corners of your furniture. Cats find the texture unpleasant and unrewarding to scratch. Just an idea
- Our cat does the same and I've noticed it's more about getting our attention than actually sharpening his claws. He knows it'll illicit a response out of us every time.
- Those are the parts of the room that need their smell subtly corrected. Also, they feel nice.

Our cat has a craving for chocolate, milk and everything not good for her.
She's not the brightest bulb

My cat just puts all the litter at the very back of the litter box. Then pees right at the entrance of the litter box. Then puts her paws thoroughly in pee and starts a nice stroll all around my flat.
I mean she is definitely smarter than other cats for certain stuffs (opening doors, drawers is easy for her) but she is really bad at using the litter box. And I have tried all types of litter and various amount of it but she almost always does that.
- Due to kitty confidentiality. I cannot name which cat. But, he has also some problem with the litter........ 🤫

I have one cat with both my favorite behavior and least favorite behavior.
She'll sleep on my chest at night 🥰, but refuses to be picked up 😞.

My cat wants to drink out of every glass, so I replaced all my glasses with those lidded ones with straws, now she licks the straw whenever I leave the room.

One of our cat eats everything 'long' he can get hold of. Meaning we have to hide everything such as laces or toys with tails, as he will literary chew it of and swallow it fully. Also blankets and cloth is usually not safe from him ...
- Italian kitty! He longs for the pasta! Lol

My oldest loves to explore the kitchen counters at 3a. Last week, I found the huge glass jar that I store his kibble in knocked on its side, but thankfully not broken.

My cat alway lying in on in front of door passages, which makes me need to walk around her every time. I already stepped on her tail couple times at night. This is especially annoying when someone is cooking something on kitchen, and she just walks under the legs, probably because she expects that someone will give here something to eat.

Ours has an interest in any cooking oils, but specifically olive oils. If we leave a bottle of oil on the counter by accident we will find the lid heavily chewed, or the bottle topped over so he can get to the actual oil.
Either that, or the fact that he eats anything (might be related). So scrunchies, toymice, nibble-sticks. Nothing is safe for this cat.
- One of my cat LOVES olives. He always eats it up in a second.

Mine follows me around the apartment and gets underfoot, tripping me up.
Also he will chew up any paper or cardboard that he can get to.