Well aren't cats supposed to be dumb by nature?
Cats are quite smart. They won't do what you tell them, which is truly the sign of budding intelligence. (Teenagers, independent nations, minority groups, etc..)
Also, my cat can jiggle a doorknob. They're capable of imitating humans like monkeys and they seem to understand cause and effect relationships.
They're not as smart as octopuses though.
