Teach a lesson

Yin Fu's words were quite arrogant but no one dared to question him. They all simply looked at him with similar expressions on their faces. The exam was easy? Hearing this a few students who were crying and complaining about how difficult the exam was, suddenly paused and then looked at him speechlessly. 

The exam was too easy? What kind of drug was he on? 

A few of the students wanted to cough out blood after listening to the words spoken by Yin Fu. How could such a terribly difficult exam be easy? If not for the fact that they were all standing in the examination hall with the professors watching they all would have beaten up Yin Fu for saying such outrageous words. What did he mean by that the exam was too easy? Was he looking down on them?