He should outgrow it. My girlfriend has two kittens and they are both going through that crazy stage right now. I remember when Corkscrew was a kitten (he used to belong to a friend of mine) and I would see him I thought he was evil and I couldn't stand him! I would try to say hello and pet him but instead he would run around like crazy. When he finally came to live with me he was just barely getting out of that stage, now he's a sweetie and a major cuddle bug.