1. In the campus library, the most unacceptable behavior for me is to place books at will. The books in the campus library are neatly arranged, and some people are just uncivilized. After reading the books, they put them at random, not in the original place, but on some bookshelves at random, which will affect the reading of the next reader and the cleanliness of the campus library. 2.

In the campus library, when reading a book, there are always people who like to destroy the book or paint the mark they want. This kind of behavior is unacceptable and very uncivilized. The damage to the book also affects the impression of the next reader.

In the campus library, some people also like to steal books. In some campus libraries, because the security measures are not so perfect, it is said that some people will take the book home for themselves after seeing the book they like, so they will steal the book, which will cause economic losses to the campus library and is also very uncivilized. This is a crime.

4. Turn up the alarm of the mobile phone very loudly. Everyone knows that the library is a quiet place, and a quiet reading environment can give readers the best enjoyment. However, when some people enter the library, they don't turn their mobile phones on mute, but turn them on loud, which will disturb many readers, which is really unacceptable.

There are also some people who can guess a lot from one position, but they have to put these things in other positions one by one, which takes up other space and affects other readers because they can't sit in that position to study.