It's wrong and unethical to cheat in school
It's the night before an important exam and John finds himself unprepared.
John wants to pass the exam.
John spends most of the evening cramming and catching up on the material he hadn't studied.
John creates a small answer sheet that he plans to stick in his pocket for the exam tomorrow.
John is able to just barely pass the exam since he is super exhausted, which motivates him to plan better for his next class.
John passes the exam but doesn't actually know the material, causing him to fail the more advanced class afterwards.