People in the Netherlands -- just like people in the United States -- enjoy a good practical joke on the first day of April. But whereas American jokesters would simply shout "April Fools!" after pulling off a good hoax, Dutch people add a simple two-lined song: "Één april! Kikker in je bil!" (basically to the tune of "Na-na-nana-boo-boo!").

The translation: "April first! Frog up your butt!"

I should perhaps clarify that it may just be the sixth-year-old boys from Elliot's school who have this "tradition" (and possibly not the Dutch culture at large). But I thought it was an amusing anecdote, at any rate.