In France and Scotland , pranksters often attach things to a victim 's back . Spaniards celebrate their version of April Fools ' on December 28 . The day itself is called Poisson d'Avril , as pranksters attempt to attach paper poisson ( fish ) to unsuspecting fools ' backs . Comment:
In France and Scotland , pranksters often attach things to a victim 's back . Spaniards celebrate their version of April Fools ' on December 28 . Comment: