请根据以下提示，结合你生活中的一个事例用英语写一篇短文。
Many students may have had the experience of cheating in exams, which not only results in an unfair competition but also have a bad effect on the habit of study, ruin the creativity and self-confidence of those students.
注意：①无须写标题，不得照抄英语提示语；
②除诗歌外，文体不限；
③内容必须结合生活中的一个事例；
④文中不得透露个人姓名及班级名称；
⑤词数为120左右