What your cat hates most?

My phone when I turn on the camera to take her picture or video.
- 🫣 So, not a lot of pics and/or videos?
  
  I have learned to be sneaky, but unless she's asleep or bribed with treats, they're mostly like this where she looks vaguely annoyed or disappointed with me.

Kitty kisses!! I always get a stiff paw to the jaw when I go in to steal some...

Cat b hated water. Cat a you could put under a shower and he'd be happy.
Cat b hated nail clipping. Well, about three paws might be tolerated but then it'd be enough and you got the teeth. Cat a didn't mind.
Cat b hated trips to the vet. Somehow he knew and would find the strangest hiding places that day and fight all the way into the carrier and out. Cat a would purr and brush against the vet, happy to see new people.
Taking medicine...
It wasn't that cat b wasn't chill or happy to be around people or anything, he was a big softy, really. But I can't think of much that cat a complained about.

An empty food dish.
- An almost empty food dish... My cat starts meowing when there's like 1/4 of the food still in the dish lol
  
  Don’t you know? Anything less than full is empty.

Cat 1 - being picked up. Usually makes him very squirmy.
Cat 2 - being petted when she didn’t initiate affection.
Cat 3 - interacting with cat 1, she doesn’t like him, especially not in close proximity, which he hasn’t picked up on despite her hissing and smacking him regularly for the last seven years
- Typical sibling behaviour

Me trying to pick her up.
But once I do, she's like:
Then 5 second later, stuggles to get off me.
But also she never drinks from a water fountain. That fountain is now just collecting dust...

One of my cat dislike it when i touch his foot and tail and thigh too much, so i proceed to touch his foot and tail and thigh so much that he will start to bite me.

The vacuum cleaner. One cat gets really scared and freezes while the other starts hissing at the machine when I bring it out.
- Ahh! The beast that screams while it eats! (to quote an old, old reddit comment)

Citrus. He is genuinely offended if you offer him an orange
- That’s due to the whole “citrus fruits are toxic to cats” thing!
  
  Huh....maybe my cat is on to something 🤔

Cheap cat food. She turned her back on it, made scratching motions as if burying shit, gave me a "look" and stalked away.

Being picked up. She lets me do it if I need to but only for a second before she starts wriggling and lamenting. Loves to lay on my stomach so it's not that she doesn't want me close but everything has to happen on her terms.