At the park near Duboce Triangle in San Francisco, 5 p.m. is canine happy hour. "I always say, dogs are people, so I love him," said Yves Dudley, looking on as her 9-month-old collie-schnauzer mix played in the grass. "Getting your dog in to see the vet is as competitive as trying to buy Coachella tickets online," said Laura Vittet, …
