William is a student who signs up for Alex P. Keaton and James Jarrett's tutoring service in Don't Know Much About History. He clearly is badly in need of help - he doesn't know what "tutorial" means or how many days are in each month, and on his first day of lessons, he forgets his books. Alex and James do their best to teach him, but Alex comments, "It's a good thing we don't offer a money back guarantee."