My husband's mom's cat really likes to scratch at the bedroom door and his mom hates it! They've had this cat a few years but was over a year old when they got it. His mom yells at the cat every time she does it, but, this has not deterred the cat. She hung a carpet like scratching thing over the spot, but, took it down because the cat will only use it if it's on the floor. How can she get the cat to stop scratching at the door? Maybe squirt it with a spray bottle? Any ideas???