How to treat the postgraduate entrance examination as a joke?

In a biology exam, there was a question about looking at the feet of animals and guessing the names of animals. One candidate really can't do it. He tore up the test paper angrily and went out. The teacher saw it, grabbed him and said loudly, "which class are you in?" You are too arrogant. " The student lifted his trouser legs and said, "Guess, guess!"