I think that there are alternative ways to discipline for the most part. That goes for everything from dogs to cats to children. I do spank my dogs and my kids, but only if whatever they did severely jeopardizes their safety. Even so, 99.9% of the time, I can get my point across without hitting. I do not discipline my cats in any physical way what so ever. I agree with everyone else about hitting cats. Cats especially don't have the personality to comprehend spankings. It'll only make your cat resent you. She's probably just being playful. One of my cats bites all the time. She bites when she wants to get pet, she bites when she doesn't want to get pet, she bites to play, etc... I just say a sharp "NO!" and put her down. I let her know I don't want her around me if she's going to hurt me.