She steals anything that is not nailed down from anyone in the house; steals food, tears up paper,
wallpaper, books, etc.; screams when she gets a consequence. I've had to put an alarm on her door to keep her from roaming the house and doing God knows what. Consequences, privlege removal, rewards for good behavior, nothing works. She cannot be trusted out of our sight. What do I do? Also, a very convincing liar. What do I do.