Where I live, the cats eat the dogs.
No, seriously, a cat willing to defend herself instead of running can send the largest dog packing. I have a stupid relative who owns a German Shepherd trained to defend the house. One day she was visiting and the dog spotted my cat on the lawn. The dog flipped out, barking and growling and tugging on its leash. She pretended to lose hold of the leash and let go. She was smirking so I knew it was deliberate. The dog bolted towards my cat and I only prayed that she would be faster. I was sure she was a goner. But instead of running my cat turned towards the dog, spitting and hissing like a tiger with her claws extended and her fur standing up. She was crouching and you could see that she was just waiting for the dog to come close enough so that she could jump on its head and go straight for the eyes and nose. The dog stopped like it had hit a glass wall and almost did a barrel roll in its attempt to turn around without getting any closer to my cat. My cat sat down again and very deliberately began to clean herself and ‘ignore’ the dog. It was pretty incredible.