The parents of a 4-year-old California boy say he was mauled by a dog while its owners just watched and walked away. The unprovoked attack two weeks ago on the streets of San Francisco led to the hospitalization of the child, who was walking home with his nanny at the time. “All of a sudden (the dog) appeared out of nowhere, charged towards him, chased him and pinned him down and bit him really viciously on his left arm,” the victim’s mom said, according to KGO-TV. Surveillance footage appeared to show a couple eating on a restaurant patio with their unleashed dog. As the boy and his nanny wal…
