When I was in elementary school I heard a story once about one of the high school students in my hometown. The story always amazed me for two reasons; first for the student himself and what he dared to do and second for the reaction of the teacher whom I though should have been a bright person.
Apparently, it was the exam season and in the essay exam the subject was: "what is risk?" Our story's student wrote at the beginning of his paper: "Risk means..." And then he delivered back his paper just like that.
He got the full score at the end.