There's always a few students who will try to gain an unfair advantage to improve their chances when it comes to school exams.
Methods to cheat the system range from simply glancing over at the paper of the student sitting next to them, to those that take real planning like writing answers on the inside of a water bottle label.
Although most people will deny they ever even considered cheating, it would be pretty hard to turn a blind eye if a teacher accidentally offered you the answers on a plate, right?
So when a university professor sent their students a huge folder of presentations to help them revise, their eyes must have lit up when buried way down at the bottom a file named 'Exam answers NOT FOR STUDENTS' appeared to have been attached by mistake.
In a video shared on Reddit, one of the students says: "I was looking through all the course materials and I noticed at the bottom it says 'exam answers not for students'.
"And I'm wondering, is this a mistake? So I click on it..."
But instead of opening a file leading students to a treasure trove of answers that will allow them to ace the final test, it redirects to YouTube and simply plays the music video to Rick Astley's 'Never Gonna Give You Up'.
People loved the professor's sense of humour, as one commented to say: "About to go to college to become a teacher just so I can do this."
A second said their teacher had played a similar prank, replying: "I had a professor do this. Except it was just a word document that said 'Do you really think I’m that stupid?'"
And another shared a story of when their professor really did make a big mistake, explaining: "One of my university exams was online, and each question was uploaded as an image.
"The professor named the image file the correct answer, so if you hovered over the image you'd see the answer. I was the only person who noticed. I did quite well in that exam."
