We have a cat (who's a little over a year old)who just started an aggressive behavior of attacking us. At first it just seemed like playful pouncing but it has become more serious. Whether it's an arm or a foot, he'll clamp his teeth into the skin while grabbing on with all limbs with his claws digging in tight. The more we try to stop him the more he tries to win at this painful game of his. The only way to stop him is to grab the fur on the back of his neck. This enables his use of teeth and claws. We then put him in a room behind closed doors. Sometimes when we let him out he'll come right back and try again. It seems like attacks me (mom) the most but has also tried with the other members of the family. HELP! We love this cat but we need for this to stop or we may not be able to keep him.