 Does your cat chew on your stuff? Not only can this behavior be annoying, it can actually be pretty dangerous. Is there anything you can do to stop your cat, your stubborn, I'll do what I want cat, from chewing? Stopping chewing starts with understanding why cats chew in the first place. The most common cause of feline chewing is boredom. For a lot of cats, it provides the stimulation they crave. For some cats, chewing is compulsive. It's a way to provide themselves comfort and can even be an expression of OCD. Remember, chewing is an instinctive habit in cats. It's in their DNA. That doesn't mean you have to live with incessant nibbling, though.