The day before London banned drinking on public transportation, thousands of people went on the 'Circle line' to ride in a circle for hours while drinking
The London public transportation is famous for it's efficiency and reliability. "The Underground" in particular is a model of subway transportation. Perhaps this is because there is no drinking on it.
One section of the Underground is the Circle Line, which spirals from Hammersmith to Edgware Road and then does a loop around central London.
The day before London banned drinking on the Underground, thousands of Londoners decided to have a last hurrah on the Circle Line. On May 31, 2008, they packed the trains and brought along their alcohol to party up the last few hours of legal drinking. Thousands of people attended and 17 were eventually arrested for disorderly conduct.