How do teachers joke to encourage students to cheat in exams?

Students cheat in exams. How do teachers joke and encourage them as follows

As a teacher, how to criticize students for cheating? If there are students cheating in the examination room of senior high school entrance examination, college entrance examination and postgraduate entrance examination, the invigilator, as a teacher, will remind and warn them in strict accordance with China's examination system and examination room discipline in the principle of fairness and justice, and even confiscate the test papers if they don't listen. However, in the usual final exam, students cheat, and teachers can be tolerant and generous, reminding students that cheating is a wrong behavior, and students will not be held accountable if they correct it.

As a teacher, how to criticize students for cheating? If there are students cheating in the examination room of senior high school entrance examination, college entrance examination and postgraduate entrance examination, the invigilator, as a teacher, will remind and warn them in strict accordance with China's examination system and examination room discipline in the principle of fairness and justice, and even confiscate the test papers if they don't listen. However, in the usual final exam, students cheat, and teachers can be tolerant and generous, reminding students that cheating is a wrong behavior, and students will not be held accountable if they correct it.