He pulled a knife and pointed it at the woman. “I am disappointed in my decisions,” he said sadly. “What?” she said, eyeing the knife. He repeated, “I’m disappointed,” and the knife turned in a slow circle in his hands. The woman raised an eyebrow at his mother and me. We shrugged and I bent and grabbed his thin wrist and gently pulled it back down to his side. “He said he is disappointed,” I explained, still struggling to point the boy’s plastic knife in a more respectful direction. “He is showing you his new knife that we just bought him. He was tricked. It’s… it’s sort of complicated.” The woman started to say something, but instead, she just smiled and went back to…