How many keys do you have? My apartment’s owner put another lock on our door. The reason for safety. … Key Is it so effective to guard against rubber? Of course rubber takes long time to open, if there are many locks. But also us… We need a few minutes to open door. How crazy it is. I’m always irritated to open and close key. Even there are keys, rubber entered, other persons uses my things. What is the meaning of the key? To irritating me? … When I was Japan, and also Germany, I had only some keys. For house, for bicycle, sometimes for room. It’s already enough. But here? How many key I have. What is it? Am I not trusting people? Is it not peace here? … It’s good key factory. They have high demand. Because of rubber, and not peaceful. … So it means that if it’s not peace, market will increase, and also more demand of labor as police and guard. How come? If all of us trust each other, and peace, we don’t need to buy key, no ne...