Placeholders appear in newspaper
Some years back, I saw an employment ad for a major computer company in which all the text said "Lorem ipsum." Clearly someone was supposed to fill in actual copy, but had neglected to do so.
Something similar, though less extreme, happened in the San Diego Union-Tribune the other day, when their new automated pagination system made some mistakes:
A front-page story sends the reader to A10 to continue the story but you won't find the story title. Instead, you'll find the word "Slug"[...]. Below that, you'll find the phrase "Three lines of jumphed right in here, yuppers."
(And btw, I hadn't previously encountered the word "jumphed," but I like it. In case it's not clear, it refers to a "jump headline." See also the question of whether to use jump heds or jump words.)