What's the story of students playing tricks on their teachers?

On a stormy night, a monster appeared outside the window of the giant bedroom. This monster has a pair of extremely sharp and hard horns on its head, golden hairs on its neck stand up one by one, its eyes are full of gloomy and terrible green light, its jaw is open, revealing a row of sharp teeth, and it seems very hungry. By the light of lightning, Ju Ye Wei saw it banging on the window with its front hoof from time to time, and his mouth seemed to let out a roar.

When Zhu Ye Wei first saw this monster, he was really taken aback. But when he saw the sharp and hard horns and the front feet that kept banging on the window, he immediately put down his heart. He lit the oil lamp and observed the monster through the window. At once, he understood that it was a prank. He rushed out of the door, grabbed the monster and dragged it into the house.

The students burst out laughing when the prank was caught. Zhu Ye Wei looked at these naughty children and couldn't help laughing with them.

Later, a student asked him, "Professor Ju Ye Wei, why aren't you afraid of this monster?"

"Although this monster looks terrible, but a look at its hard horns and front feet, I knew it was a herbivore, and it wouldn't eat people at all. On the contrary, it would only scare people. You must learn to use the growth law of animal organs to analyze problems! " Then, Ju Ye Wei explained in detail why he saw through the students' practical jokes.