April Fools’ Day is an annual custom on 1 April consisting of practical jokes and hoaxes. Jokesters often expose their actions by shouting “April Fools!” at the recipient. Even mass media can be involved in these pranks, which may be revealed as such the following day. The custom of setting aside a day for playing harmless pranks upon one’s friends, family and neighbour has been relatively common in the world historically. Enjoy yours!