The whistle comes first. Then the booming voice.
“Ah-ah — are you going to come back?” Marian Greenfield calls out to a pedestrian easing into the crosswalk at Oakdale Avenue and Keith Street. “That’s against the rules and regulations.”
Greenfield, 82, has worked this corner in San Francisco’s Bayview neighborhood for so long that it no longer goes by the street names. Outside George Washington Carver Elementary School, everyone calls it “Granna’s Corner.”…