The plaintiff says she brought her 19-pound dog to the dog park, but the defendant’s large dog rushed at her and pounced on her, causing bruises. The defendant won’t pay the vet bill, so she’s suing. The defendant says her pit bull is a service animal and they were inside the dog park. She says her dog simply sat next to the plaintiff’s dog. The fluid in the plaintiff’s dog’s joints is because she’s 15 and overweight.