lol i wonder if teachers just sit there and laugh while marking my school tests
ok i gotta tell you a story: when we were writing a test once this teacher who had to supervise us was marking the tests of some younger students. and sometimes she started laughing or shaking her head in disbelief. (her desk was right in front of mine so it was kinda annoying)
I was a TA during a summer program for borderline students and I had the pleasure of grading their tests.
I made the mistake of doing it in the back of the classroom during a lecture, which meant I was wheezing trying not to make a sound as I lost it over some of their totally non sequitur answers.