In a personal injury action for injuries sustained by plaintiff who lived and worked at San Quentin prison and had already received workers' compensation for the injury, summary judgment in favor of employer, based on the "premises line" doctrine, is reversed where: 1) it was error to hold plaintiff's tort claim barred solely because he was on his employer's premises at the time of his fall, particularly where he lived on those very premises; and 2) there is a triable issue of material fact whether plaintiff's injury arose out of and in the course of his employment.