He is a kitten and that is just kitten play and he is just doing what kittens do. He is a kid, learning and exploring the world. Sad to say they grow up all to fast so enjoy his kitten antics while you can. I could tell when Chester was a kitten that he would one day be a big boy and is he ever a big'un so if you think Ozzie is going to be a big boy, he probably will be. Chesters ears and feet were so big that I told everybody when he grew into them, he was going to be hudge! He is long and tall and about 17 pounds now. Here is that handsome big boy! Wish I could find his baby pictures.