The other day, I was in the bookstore, and I saw a Bobobo manga. It was the only one so far that came out in English (that I know of), and it didn't have a volume number anywhere. Even the back of the manga pointed towards it being the only one. Well, my mom got it for me a few days later, but on the first page, it said "So far in the story ~~~~~". It turned out that the manga picked up right where I left of in the anime. Then, the next day, the show was on, and it was the beginning of the manga.
That's kinda freaky, don't you think?