Clement Clarke Moore didn't want "The Night Before Christmas" published
Also known as 'A Visit From St. Nicholas,' the famous Christmas poem that practically invented the modern concept of Santa almost stayed in the drawer. Moore, a 19th century author and classics professor, wrote the poem for his family to celebrate Christmas in 1922, allegedly drawing inspiration for Santa from a pudgy Dutch driver who took his family on a sleigh ride. But Moore never intended for it to be made public. In fact, a close friend of Moore's actually sent the poem to the Sentinel newspaper, where it was published anonymously. The writer felt the poem was beneath his talents, and when it was published and became a huge hit, he denied authoring it for nearly 15 years. (It was eventually included in an anthology of Moore's work thanks to the urging of his kids.)
How about that?