Headline Harry and the Great Paper Chase

Not educational as such, but I played a lot of Star Wars: Epic Duels and Heroscape, and both of them rely on precise interpretation of the wording of powers. "May" vs. "Must", that sort of thing. It made me hyper vigilant of the exact wording of agreements, such that a contract lawyer once complimented my obsessive attention to detail in a contract. So I'd say that was pretty educational.