Our newly acquired cat, Finn, was following me as I was following Atlas and his three around today as they free ranged behind the original garden. Once, Finn started to play stalk Dottie, who was completely oblivious to him, but Atlas wasn't. He saw Finn's position and got between Finn and Dottie and was getting closer and closer to the cat. Suddenly Finn tucked his paws under his chest and acted like he was just out for an afternoon chill session. Smart cat knows when to play dumb. Not sure what Atlas would have done if Finn had done a play charge, but he seemed to be ready to do something.