John's English Literature teacher saw that John had fallen asleep:

"Now let me ask you guys a question, who wrote HAMLET? John? Can you tell me?"

John woke up and rubbed his eyes: "Hum, aaaaa, Mrs. Black, honestly, hum,I didn’t do it!"

The class filled with laughters. The teacher was angry: "Get out of my class and tell your parents to come to see me after school!"
John walked out of the class and phoned his father. His father came to the school in a rush.
When John's father saw the teacher, he said:
"Hello, I am Mr. Smith, I am John’s father."

"Hello Mr. Smith, I am sorry to tell you, but I think there’s something wrong with your son. When I asked him, who wrote HAMLET, he told me that it wasn't him!"

"Excuse me Mrs. Black," the father said, "I know that John is not a very smart kid. And I also know that he causes troubles sometime. But there is one good thing about him, he is a very honest kid. If he said that he didn't write the book, then Ican personally guarantee that he didn’t!"

"What!" Mrs. Black yelled and turned all shades of purple. “Get out of here!”

When John’s mother heard about the incident, she was furious: "What a stupid thing to say to the teacher, you idiot! Have you any idea what you’ve done? How can John go back to class tomorrow to face the teacher? You should have said:

‘Mrs. Black, my son is bad, I know, I am very sorry about what he did. Tell you what, I will punish him when I get home and make sure that he will never write a book like that ever again!’"