I was in math class, I pointed with my finger to my teacher because he made a mistake about derivations, I had to go correct this in blackboard, then teacher was nervous to prove it and he went to get some books and said "It..... it's correct" all of my classmates applauded me, but I told them I don't need applauses, should applaud to my videogames which gave me huge experience including warcraft 3 map editor.