A dog that fatally mauled its handler at a Hong Kong pet training facility was a stray awaiting adoption, the South China Morning Post has learned, with residents living nearby saying they were not worried as the animals at the centre were kept indoors.A check by the SCMP on Friday morning found Pawsgate pet training centre at Ping Yeung Tsuen in Ta Kwu Ling closed a day after the attack. But staff members returned to the facility in the early afternoon to pick up three dogs, with three...