Kneading into a trance

by Rita
(New York)

Tobie the Tabby Cat

My cat is kneading into a trance like frenzy. I adopted an adult neutered male Maine Coon cat from the pound about three months ago. Last month he attacked my leg while I was talking on the telephone. I thought at first that he was play-stalking but I've noticed that whenever I'm on the phone, he kneads repeatedly until he's in a feline trance.

And then in a trance like frenzy he attacks. It's happened several times. Is he attacking out of anxiety? How can I stop this weird cat behavior?