Possible Clues:

• Toy developed in China
• Feisty, furry friend
• Small short-legged dog with a long silky coat
• Keeps shifting around in East, like some Asian citizens
• Breed of small dog
• Boxer, possibly, was this dog
• No thanks to old money, importing cattle from China
• Dog pee ruined Nike's inside
• After gym, family starts to exercise strong, eager, dog
• Dog exercise class -- family pet seen regularly