For many years, I didn't know there were ink pens containin' any ink color other than red. Now, you may find that somewhat odd, or perhaps, extremely odd. But you gotta understand the reason for my lack of knowledge.
You see, the twelve, long, agonizin', and difficult years I spent attending Athens High School contained more tests and quizzes than I'd like to remember. You know how it was; the teacher would tell you to study chapter one overnight and the next day she'd give you a test on it. You'd study, take the test, she'd grade it, and then she'd give it back to you.