From Telling Lies for Fun and Profit by Lawrence Block:
Back in the late fifties, science-fiction writer Randall P. Garrett had a standing assignment to deliver ten thousand words a month to Amazing Stories. Each month he submitted three or four pieces of fiction, each with a title and with one of his regular pen names. Each month, sure as death and taxes, Amazing's editor would change all Randy's titles and all of his pen names.
Randy decided he shouldn't bother being creative if his titles weren't going to be used anyway, and that he might as well enjoy himself. His agent's files can testify that, over the course of the next year or so, he wrote and submitted and sold the following works of fiction: Great Expectations by Charles Dickens, The Mill on the Floss by George Elliott, Tom Jones by Henry Fielding, Moby Dick by Herman Melville, and so on. Nobody at Amazing ever cracked a smile. The checks came in, invoiced accordingly, and the stories -- names and titles changed -- appeared in due course.