Mr. Charles was very upset because some of his boys whistled (吹口哨) during school hours. At last, he was so angry that he said he would punish anyone who whistled again.
The next morning, when the room was very quiet, a loud whistle was heard! The students were very surprised, and Mr. Charles at once looked around to find out who did it.
The blame(责备)fell on a big boy, John. He was often a troublemaker. But he strongly shook his head, yet nobody believed him. Mr. Charles would bring him up for punishment. At that time, a thin little boy named Max was off his seat.
"Do not punish John, sir, "Max said to Mr. Charles. "It was I who whistled. "
"I was working on a difficult math problem, and I finally found a way to solve it. But before I remembered where I was, I had whistled right out, sir! "
"I am very, very sorry, sir. I did not mean to whistle, but I can't let John be punished for my fault(错误). "
Mr. Charles said, "OK, since you did not whistle on purpose, I can't punish you. "Max returned to his seat with a red face, but all the students in the class were proud of him, for every student could see how bravely he had acted.
Max was truly a brave boy. He had done what he should do, even though at the time he might be punished.