The Apprentice... Elves

In the school for little elves the bell rings hastily Their teacher instructs them in much mischief, funny little tricks, secrets and tomfoolery to play on the people they see when they go up to earth Yet the mischievous, little elves play during the lesson They pay no attention, but now the time has come for their mischief... Will they remember what their teacher said? Are you ready? Let's go One, two, three