It’s crazy to live this way, suspecting helpless old people. Insane. But we need our paranoia to keep us alive. Hell, Harry wanted to let the old guy sit with us. It took Zahra and me together to let him know that wasn’t going to happen. Harry and I have been well-fed and protected all our lives. We’re strong and healthy and better educated than most people our age. But we’re stupid out here. We want to trust people. I fight against the impulse.