I went to the library.
I always go to the library every Sunday.
Today, someone complained about bringing coffee into the library.
To bring coffee is forbidden in the library.
However, he still wanted to bring in his coffee, and didn't understand why he couldn't.
The receptionist explained to him the reason why he could not bring the coffee inside, but he did not seem satisfied with the answer.
Finally, he got angry, shouted out something and threw away the coffee on the floor in the lobby of the library.
I was extremely scared...
It was an awful day.