Everyone remembers at least one time when they got the wrong answer on a test. I vividly recall a test I took on the states of matter in the 4th grade; one of the questions asked us to write examples of a solid, a liquid, and a gas. I was trying to be creative (I believe I wrote «paint» for the liquid), so for gas, I wrote «fire.» A quick Google search will show that fire is not a gas but a plasma. I remember feeling so betrayed and blindsided for getting that answer wrong on the test because, in my mind, fire was certainly not a liquid or a solid, and we were barely even covering the plasma subject. 

If I felt betrayed getting marked off for a question I missed, imagine how I’d feel if my teacher tried to correct me on a correct answer! The former students below have experienced that unique frustration and have lived to tell the tale.