I have a kitten about 7 months old. He can be the most affectionate kitten at times, and at...other times he becomes killer cat and attaks. While I think he is a kitten and playing, he goes crazy and bounces off the walls. I have had cats all my life and have never seen one get so crazy. I try tapping his nose when he bites or scratches, I have tried spraying a water bottle, but he does not care. He actually jumps in the shower when you are in it. Any advice on getting him to calm down?