I am not just a cat person or a dog person, I love them both equally. The video above shows one of the main reasons I love cats, though. Even as kittens, cats will stalk objects, people, dogs, or other cats, with great seriousness. I have always loved to watch my cats creep around a corner to sneak up on me, each other, or a random sock. There is such a playfulness about it, and I never know what they will do next to entertain me.