Our teacher once mocked a student for repeatedly checking her phone during class. He took it away and joked, “No emergencies happen during fourth period.” The class laughed. But when he returned the phone, the laughter faded. The screen showed 17 missed calls from an unfamiliar number. The girl’s face went pale. Without explaining, she raised her hand and calmly asked to step outside. The teacher hesitated, then allowed it. The room fell silent.