Children's laughter filled the classroom at a school in Kampung Cina, Manado, North Sulawesi. The teacher, Adeleida Tamangendar, 42, entered and said, "There's milk. One carton to a person." The kids, of which there were about 15, immediately lined up.

One of the children, Steve Laminto, 3, took two cartons. Nate Walan, 3, who was next in line, reminded him. "The teacher said only one carton," he said. Steve put the extra carton back.

Adeleida smiled