Teaching children is very interesting

I have a friend, she is from America. Currently she is teaching children English in my city. Tonight when we chatted, she told me some interesting stories about her students. She has a 3-year-old student. when the boy is taking the class, he must sit by the classroom door, and one of his parents must stay outside the classroom door. I asked her why he did like that. she told me , it is for him to open the door to see if his parents outside the door, if he can't see them, he will be nervous and cry. So every class he sits away from other students. Because other students sit together in the middle of the classroom. Only he sit by the door. Besides this story, she also told me her students taught her "bad" Chinese, when she taught the students the English word "pig", she drew a pig of stick figure, then her students said aloud " you draw ugly!" . At that moment, we both laughed.
How lovely, funny and childish the children are!
Compared with my job, I think that teaching children is very interesting.