How do you think about this rule?-about driving after drunk

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Hi.example;My friend call me at the bar from near my house. We drunk so much, later i went to back home by walk. At home,suddenly call from him. He said "Police caught me on the way to my home!" ///after he paid 1,000,000yen (almost 12200doller).and together drink guy who have to pay same. neither do bar owner. It's mean share for guilty.