They have some pretty tough gun laws in Japan, as they do in any other civilized country in the world, and they're not killing each other off with firearms. You have very violent films in Europe, yet it's not causing the mayhem we see in our streets routinely here.
They're pushing credit cards. They don't take Visa, but they do take American Express, or they don't take this one, but they take that one, or you'd better bring this one, or if you forget who you are, look on your credit card; it will be there.