Dogs who aren't afraid of cats are usually pretty dumb, but they quickly learn to fear them after getting a bit too familiar with a testy feline, the cat rewarding them for their familiarity by scratching their nose..or worse.
On the other hand dogs who are afraid of cats ain't no dummies, because they have learned the secret to surviving in a house with cats is to keep your head down, stay out of their way and never look them directly in the eye.
Because, as this strip from Port Sherry Comics shows, the arcane powers possessed by pussycats can zap you straight into oblivion with but a glare.
-Via Geeks Are Sexy