Italian April 1st is a tradition and a funny joke especially between young children at school. Do you know why? Someone stick a paper fish behind your back and then ask you:
-L'hai visto? (have you seen?)
-Il pesce d'aprile (the April fool)
This is not a wonderful joke, nevertheless this is a perfect day to receive some fish chocolate! So if you are in Italy have a look around shops and you will find this type of chocolate as in Naples.