Instruct: Classify the given review into positive or negative sentiment.
Query: Bad Dog, Bad Dog

Peter is so proud of the eighteen tricks Perth can perform and the testament that provides to her intelligence. Why then could Perth not understand that biting people is something that dogs who want to live out a natural lifespan just can't do. Was the dog that stupid, or was precious Perth never told not to. How about this for a title? Two Pretentious Rich Kids and Their Spoiled Rotten Little Dog.