Habajakk
A Habajakk is a person who acts like a madman but still has their wits about them. They hate being told what to do and would rather be in jail than be normal.
That Habajakk once jumped into a lake wearing a superhero cape and a sandwich.
My friend is a Habajakk. He turned his bedroom into a volcano just for fun.
The Habajakk in our class once yelled at a calculator until it gave him the answer.