I just finished checking my students' tests for stray marks. This is an important part of sending the tests off, but also gives the worried teacher many fearful moments, as she realizes that she has not been able to teach her class how to spell helmets (9/10 said "helmits" was OK!), or what personification was, or many other things that might mean her job when the scores come out.
However, I was saved from total depression by one student's delightful spelling: he said he would like to visit the "Eyefull" Tower in Paris. I loved that--such a fun/accurate misspelling!