Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tennis balls bad for dogs

KONG Air KONG Air SqueakAIR Balls Dog Toy, Extra Small, Yellow, 3/packWhen tennis balls get wet and roll in sand the sand adheres to the surface of the ball and when the dog constantly chews on them it wears on the tooth enamel. Many reported dogs swallowing them and choking. Owners have to immediately work the ball up with their fingers from the outside to free the ball. Thats why alot of hard plastic balls have multiple holes so the tongue does not get vacuum sucked into the ball and also if its swallowed an owner can get a grip on the ball to help remove it from the throat. Feel free to search dogs choking on tennis balls. One owners hell is not my invitation to a party. Thanks to the owners that published these nightmares. My dogs are my family and I'm there guardian. Food for thought