KEY WEST, FL—Jimmy O'Dell, 9, and his animal friend Skippy, a bottlenose dolphin, are no longer on speaking terms, the boy said Monday. "I told Skippy I wanted to ride his back out to Buccaneer's Cove to look for buried treasure," O'Dell said. "But Skippy kept squeaking that it wasn't safe. He's always contradicting me, and I'm sick of it. That finned freak is dead to me." Skippy refused to comment.