Seeing that the rag was covered with oil, Chen Jianmin closed the empty bottle's lid and put the bottle back into the oil paper bag.
When the children saw him doing this, they were curious and looked at him with rapt attention, not knowing that they would get an unforgettable lesson from it.
Then he picked up the rag with the ruler on the teacher's desk and threw it on the children.
When the rag fell on one of the children's faces, he yelled, "Pei! What the hell are you doing? This rag is used to wipe the floor!"
Feeling disgusted, he threw the rag away and it fell on the other child. The child threw away the rag again and patted his dirty clothes angrily. In this way, the rag was passed from one child to another, and finally fell on the floor.