The "Captain Underpants" series isn't a favorite for everyone. In 2002, the American Library Association ranked the books among those most frequently complained about by parents and educators. In addition, that year, "Captain Underpants and the Perilous Plot of Professor Poopypants" was removed from an elementary school in Page, N.D., after a parent objected to the book's language and "innuendos." Do you agree or disagree? Have you let your child read this series? Share your thoughts.