The next day, Peter Brown arrived at the school early and entered the classroom, where his classmates all gathered around him.
"Peter, how did you do on the exam yesterday?" a concerned person asked.
"Peter, you looked miserable yesterday. Old Jonah kept staring at you. Even when he was standing in other places, he kept his eyes on you. Haha, you're the key candidate for invigilation!"
"You didn't bet with him this time, did you? Now you're screwed!"
"Forget it. Let's not bother about him. After all, we're just useless mud, no matter how our exams turn out."
Listening to everyone's discussion, Peter Brown laughed and said, "It's fine. I did pretty well."
"Yeah, right. You're so good that you only spent half an hour on each subject before closing the examination papers. Did you only do the questions you knew?"