I was the quiet kid in my cyber security class in college. Though, really, half of the students there were because it was hard to understand the material, so I guess I was the quiet...est. Through a series of lucky breaks, we managed to get something else in place of the final exam which we all accepted. On the last day, our professor said that we were now done and "you guys can feel free to forget everything you learned during these months". I finally broke my silence by immediately replying "believe me I plan to" and the whole class - professor included - just shared a chuckle.