My six-year-old daughter became obsessed with the grumpy old man who sat alone at our neighborhood park every morning holding two cups of coffee. Every morning at exactly nine, an aloof old man sat alone on the same wooden bench. Before I could reach her, she climbed right onto the bench next to the grumpy old man. "I still can't believe you let her sit with that strange old man," my sister Caroline said one day, her voice sharp. "He's a dangerous old man projecting delusions onto your daughter!"