Personal responsibility

Where does personal responsibility begin and end? A man out on the town is refused a ride by a taxi driver. He's had a few ales at a couple of pubs,and rather than let his friends lead him away and try to find another taxi, the man alledgedly becomes aggressive, hurls fascist slurs at the taxi driver, and even slaps him. So, who takes responsibility for his actions: hands up eveyone who said the staff at the first pub he went to and supposedly had 8 beers, not all bought by him. You'd be right based on a case in Sydney this last week.