OMFG 82~?!?!

How the fuck did i get an 82 out of 100 on my Ideas/Images assignment~??!! I mean SERIOUSLY~!! The assignment was basically to pick a theme (i chose vengeance/betrayal) and pick 5 songs that depict that theme and discuss how they display evidence of the personal and the universal. Ok. I picked my songs on the day of the deadline, there was little variety in genre (2 R&B songs and 3 rock songs) which is considered a minus since the assignment outline states that there should be plenty of variety. Anyways... i picked songs that i knew simply because i didn't have time to research anything new and interesting (another minus ~ We were supposed to use songs that were unfamiliar to us so that we'd be learning something new). Anyways, i WROTE the actual assignment on THE DAY THAT IT WAS DUE. I woke up in the morning, wrote for an hour and basically just handed in my first draft without any revision - Can you say academic suicide~? Anyway ~ a week later she hands back our marks, and she calls my name and i go down feeling stupid because i "knew" that i'd failed the assignent. I took a deep breath and looked down at the paper and saw 82/100~!!!!! HOLY FUCK~!! I kinda stopped (because i was walking back up to my seat at the point) and someone goes "Dude, is it that bad~?" And i looked up at him and just stared, turning my paper over to show him. He looked at the mark and looked back at me confused saying "Dude... that's a GOOD mark..." I just nodded blankly and continued back to my seat. The notes on the marksheet say that i had "a good handle on the ideas of personal and universal", and i "articulated my points well". WHAT~!? I had NO IDEA WHAT I WAS DOING!!!!!!!!!! I was half asleep while writing it!! Dude... i just cheated the system...0___o;;;