Running tracks, public parks, dog runs and city streets all have established rules of conduct. They may limit running hours, stipulate that dogs aren't allowed, expect runners with dogs to take a specific path, or require that runners with dogs provide proof that the dog is licensed and his shots are current. Some venues only allow members; some expect runners to bring only one dog at a time. Wherever you run, there'll be rules, and that's a good thing. They're in place for everyone's protection.