¡¡¡¡ChiChi, the Chihuahua is the Hero Pet of the Year. At 13 pounds, ChiChi might be most at home in a handbag. “He’s so¡¡1¡¡that I can take him up with one hand, ”says Mary Lane of her energetic pet. “Most people see him and think he’s¡¡2¡¡. ”But last October, the Chihuahua¡¡3¡¡to be more than just a pretty face.