There's a series of children's books called the Magic Attic series. In the back of each, there's a tear-out postcard for kids to join the Magic Attic Club. On the postcard there's also a toll-free number.
The company (based in Portland, ME - hooray) that ran the Magic Attic Club apparently went out of business, and their phone number was sold to someone else - someone who is now using it for a phone sex line.
Needless to say, my Children's Librarian went through our collection and tore out all of those postcards.
Feeling daring? "Join the club:" 800-221-6972
Read more of this story at Orlando's WKMG Local 6.