A fear of clowns is known as coulrophobia, which unlike other phobias is completely justified, because clowns are evil. From Stephen King's It to the Joker to Robin Williams in Patch Adams ...
Since 1946, the country's clowns have put on their best slap, slipped into a pair of shoes that are nine times too big, and waddled their way to east London for the Annual Grimaldi Clown Service.