Shame! Malu!

Y?
I have been considered as " pencuri buku" or " a theft"!
Today, i went to the library together with my classmates because our English lecture was cancelled! Firstly, i was scolded by the librarian, why? She said that we made noise. That's fine, maybe we dunno that what is the meaning "be silent". As i forgot to bring any book into the library, i took a physics book then read, actually, i just took a look. Then, when the clock shown 10.45a.m, we went out. The signal of alarm turned red and voice out! OMG! "Masuk Semula", the librarian shouted.
Nothing happened----
Guess it urself!
Bye!