My friend had left the research students room at EUROS in Cardiff without telling me if he was coming back. I was going out, and didn't know the custom: would he have his keys with him or not? Should I locke the room? Well, if men in the state of nature are still governed by natural reason and law, then that's OK. But what if they are in the war of all against all? Then, I would have to hobbes the room -- probably triple lock it and plant a mine by the door. But if they all feel mutual compassion, maybe I should just leave it open and 'rousseau the room'.
Life in a politics department is full of dilemmas.