Books were so precious in the Middle Ages that monks invoked curses against any who might steal them:

This book belongs to S. Maximin at his monastery of Micy, which abbat Peter caused to be written, and with his own labour corrected and punctuated, and on Holy Thursday dedicated to God and S. Maximin on the altar of S. Stephen, with this imprecation that he who should take it away from thence by what device soever, with the intention of not restoring it, should incur damnation with the traitor Judas, with Annas, Caiaphas, and Pilate. Amen.

Should anyone by craft or any device whatever abstract this book from this place may his soul suffer, in retribution for what he has done, and may his name be erased from the book of the living and not be recorded among the Blessed.

This book belongs to S. Alban. May whosoever steals it from him or destroys its title be anathema. Amen.

May whoever destroys this title, or by gift or sale or loan or exchange or theft or by any other device knowingly alienates this book from the aforesaid Christ Church, incur in this life the malediction of Jesus Christ and of the most glorious Virgin His Mother, and of Blessed Thomas, Martyr. Should however it please Christ, who is patron of Christ Church, may his soul be saved in the Day of Judgment.

These are from The Care of Books, by John Willis Clark, 1901. Happily, in 1212 a council met at Paris to decree that “We forbid those who belong to a religious Order, to formulate any vow against lending their books to those who are in need of them; seeing that to lend is enumerated among the principal works of mercy. … From the present date no book is to be retained under pain of incurring a curse, and we declare all such curses to be of no effect.”

In his first field journal, John Muir listed his home address as “Earth, planet, Universe.”

Stuck in a book-filled house in dreary Belfast in 1906, the 8-year-old C.S. Lewis repaired to the attic with his 11-year-old brother Warren and began to fashion an imaginary world. Jack’s half was called Animal-Land, and Warnie’s was an island called India. The two, connected by steamship routes, formed a world they called Boxen, the subject of novels, textbooks, maps, and even newspapers that the two composed over the next five years:

In those days Mouse-land was called ‘Bublish’ and the mice called Bubills.

Shortly after the ‘Melee of Hacom’s Palace’ (for so it shall be called) some inhabitants of Bombay came over to buy nuts. They taught the mice many things. The most important of which was: the use of money. Before that the Mice (or Bubils as they were called) exchanged things in markets. The Indians landed in 1216.

The Indians as it has been told gave knowledge to the Bublis. But the Bublies asked for some of it. The Bublis asked the Indians how they got on without fighting each others men. The asked ones told the Bubils that they choose a man to rule them all and called him Rajah or king.

The Bubils followed that plan. But no!! ‘Out of the frying-pan into the fire.’ Poor miss led creatures. Now they fought all the more!! Why? Because each mouse wished to be king. One had as much right to the throne as an other. So every place was fighting.

Jack’s Animal-Land drew on the “dressed animals” of Beatrix Potter, but, influenced by the political table talk of their father, it set them in prosaic histories and palace intrigues rather than heroic adventures. “For readers of my children’s books, the best way of putting this would be to say that Animal-Land had nothing whatever in common with Narnia except the anthropomorphic beasts,” he wrote later. “Animal-Land, by its whole quality, excluded the least hint of wonder.”

When PLAFSEP magazine asked its readers to nominate the silliest library subject heading, the hands-down winner was BUTTOCKS (IN RELIGION, FOLK-LORE, ETC.). Other highlights, gathered by columnist John R. Likins:

AMERICAN GIANT CHECKERED RABBIT
BANKRUPTCY–POPULAR WORKS
CATASTROPHICAL, THE, see also COMIC, THE
CHILD ABUSE–STUDY AND TEACHING
CONTANGO AND BACKWARDATION
DENTISTS IN ART
FANTASTIC TELEVISION PROGRAMS
FOOD, JUNK
GHOSTS–PICTORIAL WORKS
GOD–ADDRESSES, ESSAYS, LECTURES
HEMORRHOIDS–POPULAR WORKS
JESUS CHRIST–PERSON AND OFFICES
LABORATORY ANIMALS–CONGRESSES
LOVE NESTS–DIRECTORIES
MANURE HANDLING
MUD LUMPS
ODORS IN THE BIBLE
PRAYERS FOR ANIMALS
SICK–FAMILY RELATIONSHIPS
URINARY DIVERSIONS, see also URINE DANCE
WASPS (PERSONS)

That’s from Likins’ article “Subject Headings, Silly, American–20th Century–Complications and Sequelae–Addresses, Essays, Lectures,” in Technical Services Quarterly, vol. 2, no. 1/2, Fall/Winter 1984, using data from the Library of Congress and Cataloging in Publication. In The Library at Night (2006), Alberto Manguel gives these:

Banana research
Bat binding
Boots and shoes in art
Chickens in religion and folklore
Sewage: collected works
Sex: cause and determination
Tic: see also toc

And the Whole Library Handbook (1991) offers these, collected by the Library of Congress Professional Association:

Adult children
Beehives; see Bee–Housing
Diving for men
Drug abuse — Programmed instruction
Feet in the Bible
Hand — Surgery — Juvenile literature
Lord’s Supper — Reservation
Low German wit and humor
Monotone operators
Running races in rabbinical literature
Standing on one foot; see One-leg resting position
Stupidity; see Inefficiency, Intellectual

I think some of these may now be out of date, but there’s certainly no shortage of curious headings — in doing research for this site I recently ran across “Raccoon — Biography.”

In October 1885 Robert Louis Stevenson’s wife woke him out of a troubled sleep, and he cried, “O, why did you wake me? I was dreaming such a fine bogey tale.”

“One man was being pressed into a cabinet, when he swallowed a drug and changed into another being,” he told an interviewer later. “I awoke and said at once that I had found the missing link for which I had been looking so long, and before I again went to sleep, almost every detail of the story, as it stands, was clear to me.”

He wrote out the tale in three days and presented it to his wife, who said he had overlooked the allegory at the heart of the idea. He grew angry, paced his room, and reappeared. “You are right,” he said. “I have absolutely missed the allegory, which after all is the whole point of it.” He threw the manuscript into the fire and spent another three days rewriting it. In all he wrote 64,000 words in six days.

As he crossed to the United States in September 1887, he had an early intimation of the book’s fame: The ill-tempered pilot of his boat had been nicknamed Hyde, and his better-natured partner was called Jekyll.

Most mutilated journals in the library of the University of Nebraska, Omaha, September 1982-May 1983:

1. Personnel Psychology
2. Journal of Conflict Resolution
3. Journal of Politics
4. Judicature
5. Education and Urban Society
6. ASCE Journal of Hydraulics
7. Phylon
8. Journal of Humanistic Philosophy
9. Journal of Marriage and the Family
10. Journal of Experimental Psychology

(“Saving and Securing Library Materials,” American Libraries, November 1983, p. 651.)