Hilarious blur-est day of Uni

As I entered class at 10am this morning, my friend saw me and asked me, "Where were you?". I gave him this confused look. Then he continued, "You take 3C6 module right?" Then I was still blur, "What's 3C6?" He then told me, "VIBRATION! Where were you during the 9am lecture?" I totally had no clue I missed a lecture! I even checked my timetable a few times the night before! So...I came back, and highlighted the words as well as coloured the boxes of my timetable. I am sure I won't ter-miss another lecture anymore! If I do...I really don't know what to say about myself already....