For some folks -- like my wife -- there is no plotting involved. Get a cat close enough and it might kill her due to her severe allergy, which also crosses over to many dog breeds.
A former neighbor had a cat. If I went to talk to them, I'd have to immediately wash my hands after coming back in the house.
Cats: So evil, they're unapproachable.
(So why do our daughters think they're SOOOOO cute? THAT must be part of their plan.)