This was a long, long time ago in middle school. I'm ashamed of it, but it was also a difficult situation. We were in an advanced Math class so we were doing like pre-Calc. The exams were always very hard. For this exam, we were allowed to work in groups of 3. We couldn't choose the groups, the teacher created them by dividing the class into sections by grade (highest, lowest, and middle) and making the groups so it was evenly distributed.
Now in my group, I was the middle student. I was okay, but not enough to do well on this exam. The low student was this guy everyone liked including myself, but...academia was not for him. He had good taste in music though.
Now the issue was the student from the "highest grade" pool who was in my group. I won't use his real name, so we'll call him Jack. Jack was pretty dumb, a jock, and the way he was doing well in the class was by copying HW and cheating on the prior exams. When he was assigned to my group, I was like FUCK ME.
However, he had his connections and he actually had the entire answer sheet for the exam from people in another section who had taken it before. He told this to us, and I objected and said this was wrong. Now maybe you don't believe me, but I really did try to resist for a good 5 minutes where they had to convince me to agree. The other guy in the group helped convince me and talk me down.
So...we pretty much just started answering the qs correctly. The way they were doing it, we would have gotten a 100. They are so dumb. I was like "Guys, the teacher isn't fucking deluded that us 3 would be able to manage a 100. Let's go with something more realistic!!" I think we got an 85 on it which was much more than any of us deserved.
Now that was an elaborate way of cheating, here's a mini-story about the opposite of that. Quiz for history on scantrons in HS. I'm sitting all the way in the back, one of my friends this girl is sitting in the desk in front of me. There is like 1 minute left, and she literally GRABS my scantron from my desk (I was good at history) and puts it on her table and starts copying. I am like FREAKING out (silently because everyone is still taking the quiz) and whispering that the teacher will see that I don't have an exam on my desk. She just smiled and continued. Sigh, I miss her. She was crazy!