“I looked at the tall man through the rearview mirror—newly heroic and cheerfully crushed into my tiny car—and I knew that I loved him. Hot on the heels of this realization was the accompanying acknowledgment that it did not take a great deal for me to fall in love. Being defended, considerateness, a train door held open, making room on a crowded pub bench—these things regularly not only triggered my devotion, they also were watertight assurances of my lifelong happiness with this new stranger. The thing was, I was completely aware of how nuts it was to feel a whole life together on the back of a kind word, but it never stopped me from falling in love. As a truly terrible person I once fell in love with said when I told him I first loved him after he’d given me a lift home: “That’s not just nuts, it’s also crazy.”