My landlord recently installed a fence around the shared front yard of our building in Upstate New York. Each of her tenants has a dog, and she thought it would be nice to provide a safe off-leash space where they can run around and chase a ball. But this act of kindness has introduced an unfortunate new temptation. When it’s time for one of my dog’s three daily walks and the weather is bad, or I’m particularly busy (or particularly lazy), I now sometimes think: “Maybe I’ll just let him into the yard?”