I had four cats at one time. in the afternoons, i'd let my two dogs out of their pens(blue heeler and australian sheperd at the time) They'd get their exercise by playing with their feline buddies. One afternoon hubby and I were sitting on the patio watching our menagerie play. One of our friends drove up with his dog. When he got out, his dog jumped out of the back of his truck and started running toward my two dogs growling and barking. All of my cats immediately stood up on their back legs, blocking the dog from my two dogs which were fives times as big as they were. The dog tucked it's tail and the owner caught him running up the highway. We were known for having 'watch cats'. lol. I was amazed