I hate cats. I have known too many vicious, untrustworthy, violent cats. The worst was one I lived with. The owner was blind to his many violent tendencies. Even as it was attacking her and the vet, and the vet was diagnosing him as brain damaged, she was laughing it off as having a "quirky" cat. She didn't think it unusual that she had to handle the creature with oven mitts. She thought we were all crazy for learning to despise the thing after we had given it every chance, and simply had grown tired of being attacked, scratched, bitten, etc.
One of my favorite days is still when she had a last minute thing come up, and asked if I could take the devilspawn to be neutered. As I drove along, gritting my teeth as it casually clawed my neck and head and occasionally tried to bite me, I was overjoyed to turn him over to have his balls lopped off and even paid for it myself. Most satisfying money I've spent.
That cat was the final straw that made me write off the whole species. I've closely known about a dozen cats in my life. 3 were great. 8 were awful; they were basically wild animals trapped in a house. The last one was an abomination. I've only know one bad dog, by comparison.