Who's The Worst Student In All Of Science Fiction And Fantasy?

You can't enter into uncanny worlds without studying the secrets of the masters. Science fiction and fantasy are full of academies, schools, apprenticeships and other places of learning. And they're also full of awful students, who skip classes, don't listen and muck everything up. But who's the worst student of them all?

Please include a picture or clip (or book cover) denoting the most negligent and truant (or just least intelligent) student in all of science fiction and fantasy. And please mention his or her name, where you'll find them, and why they're so terrible. Thanks!

Top image: Harry Potter, who barely ever has time for his studies in the middle of hunting Voldemort and obsessing about Draco. Not to mention all the quidditch.