Sigh...books and art vandalism snowflakes....
1) When I first began the job at this library, we often had art shows of work done by local middle school kids. One little girl had done a pretty chalk and pen abstract in colors that were just lovely and went with my then decor. I was absolutely enchanted and finally got in touch with the teacher and asked if the child would sell me the painting. The little girl was so excited and was afraid that asking $20 was too much. I thought that was fine and agreed to pay...which I did.
One day as I passed by "my" soon to be painting, I noticed black marks all over it. Turned out one of the artist's friends was jealous that someone chose her painting and they defaced it hoping I would reneg on my purchase. I remained steadfast and to her credit, the artist tried to fix it. Just don't understand why other people feel they have to ruin everything for other people.
2) Not defacing, but theft. This relates to religion and art. We had half a dozen enormous and old art books on the artwork and crafts of a particular religious group. Four members of said group were in and asked to see the books, which are reference materials and absolutely did not circulate.
Well, said group left, with strangely suspicious squared shapes in their previously flat shirt fronts..I went to my then supervisor and told her what was happening and she just shook her head. "We'll get into more trouble for harassing them than we will for letting them steal the books."
These days I am one of the collection development and acquisitions librarians and because of that incident and dozens more like it, a lot of us are loathe to spend more than thirty dollars on books. (Of course, we are loathe to spend money on almost anything that is new, popular or Oprah Endorsed because it will disappear within six weeks. If I had a dime for every time we have purchased Greene's "The 48 Laws of Power" in groups of ten and twenty, I would be rich today.)
Edited to add a bonus story: This illustrates exactly why my library's collection gets decimated and our patrons get rowdier. Years back we had one particular book thief who finally got caught, not by us, but by the employees of Other Town Library. Other Town Library had thief arrested and forced into lots of community time. During that time a police investigation turned up hundreds of our books in Thief's apartment.
Did we follow Other Town's example? Of course not.
WE made Thief a member of the newly formed Friends of the Library Committee because THAT would give Thief perspective on stealing.
To this day, Thief sincerely believes that they should have a say in most library programming and decisions......