Mine is not a typo story, just stupidity I guess.

It was in high school many many moons ago, and the year-end holidays were coming. I recall dimly that the class subject was some form of science: a subject I am weak in, but being anxious for good grades, my studies were diligent. And there we were, in December, taking that last test before school let out for the holiday.

The teacher had done the class a favor. A multiple-choice test it was, with alphabetic characters for the answer options. And, yes, if you looked at the answer sheet, the correct answers spelled out

MERRY CHRISTMAS AND A HAPPY NEW YEAR

as did every answer sheet from every student in the class...except for me.

I had some kind of paranoia about other students cheating by looking at the answer sheets of those around them, including my answer sheet. So I had another sheet of paper or something with which to COVER the answer sheet, concealing all my answers the moment I chose them and wrote them down. I was the only one in the class who did not score one hundred percent on the test. Never mind what my score was; my answer sheet told the story.

MERKY CHRISTMSH AND A HARPY NEW YRBL