Dr. Calvin Lum makes a housecall on Tuesday, July 19, to the Steinhart Hotel and Apartments in San Francisco, to perform a first exam for Marcus Ross's recently rescued boxer, Miles, while Marcus's son David Ross (left), age 11, plays a videogame. Miles was adopted by Ross on Sunday, July 17, while he was in the city working on Billy Elliot (Ross normally lives in Las Vegas). Dr. Lum has also done housecalls for Ross's other boxer, Carly, who was adopted in 2007. Dr. Lum runs his practice, San Francisco Veterinarian Housecalls, out of his childhood home in San Francisco.