When a wealthy driver from Kensington or Chelsea sees a person on a bicycle, their face turns red, their heart rate increases, and their body starts to twitch. In extreme situations, they may imagine the letters they'd like to write to the Daily Mail and Daily Telegraph complaining about the abomination -- this is most common when they're driving a vehicle designed for off-road expeditions through central London.

There was a similar issue with articulated buses. These were removed by their leader, Boris Johnson, at colossal expense. Some drivers in Chelsea are still suffering the after-effects of seeing these vehicles on the road.