Number one is myself. Always. She's not exactly sane, in a bad way (Or at least as far as I understand, I don't really comprehend right and wrong properly)
Emotion. For someone so emotional so much of the time, I really hate emotions overall. They cause nothing but pain. And I don't want to feel pain anymore (as in I have wanted to previously) Someday I hope to kill the part of me that experiences emotion, but it also kind of experiences fear and doesn't want to die, so I think that's impossibubble
Then comes bugs. I hate bugs. Just kill them all (I happen to love Bug types though )
Unicorns. Don't laugh yet. Just think about it a moment. A horse is already a very dangerous creature (Just try being trampled by one...), and now you're giving it magical powers and the ability to impale you. How is that not terrifying? (And, if it impales you in the right spot, you could take hours to bleed out)
Zombies. Just because. It's pretty irrational
EDIT: Eh, not really, I kind of maybe want to murder the girl that I love...