She has a strict rule about cell phones in her class and has a padded bin that everyone has to put their phones into before class begins. One day, hers rings, though she thought it was turned off. The students insist she put it in the bin with theirs. Someone steals it. She reports it to the phone company, but also goes to the police. When it turns up at a crime scene a few days later, she finds herself in a sticky situation.