By Jose Antonio Michelena, Photos: Caridad Havana and Its DogsHAVANA TIMES, Sept. 10 (IPS) – Among people traveling along 23rd Street in the capital’s Vedado district – teeming with people around 11:00 in the morning in front of the Chaplin Cinema – a man pedaling by on his bicycle was just one person more. But the act he committed made his presence loom large.Tied to the frame of his bike he had a rope, and tied to that rope a dog – with its paws firmly trying to dig into the asphalt as it was