Nelly Santos was worriedly waiting for her son to come home after receiving a call from his school. Daniel arrived with his head lowered, his cap visor covering his face and his eyes reddened. He'd been caught smoking marijuana with some other students. Nelly, a 58-year-old nurse, first thought: "he's lost." She's heard stories about people who'd gone crazy after consuming cannabis; it turned them into criminals, or ruined their lives and the lives of those around them. But seeing the shame, apathy, and fear with which her son crossed the threshold of the front door changed her mind within seconds.