Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Zero Stars Here

This product is a travesty, should be taken off the market and made illegal. Our relationship with our "best friends" is in a sad state of affairs if we have to shock them to make them stay in one place. The whole issue of the inappropriateness of shocking dogs aside, the potential for abuse with this product is *huge* - there are already people who overcrate their dogs, now they can use a shock product to keep their dog in one spot 24/7. As a Certified Professional Dog Trainer, Certified Dog Behavior Consultant and author of several books on dog training and behavior, I vehemently protest the existence of this torture device.