RITES OF PASSAGE   November means that it's time for the Shichigosan holiday, a rite of passage for all Japanese children. Of course, Zetsubou-sensei is quick to point out that rites of passage don't end with childhood. There are many different rites of passage in the world. For instance, a manga assistant's rite of passage is spilling coffee on the storyboards for the first time. And we mustn't forget the important rite of passage that any true Zetsubou fan must undergo. What is it, you ask? Why, buying a copy of Sayonara, Zetsubou-sensei volume 8, of course!   Includes special extras after the story!