Random slice of life moment

So I had finals not so long ago. We have a school website for classes and I was just going through the revision documents on the math section when I saw a link called "Answers to the exam".

As any student that is curious about what could be in the exam, I clicked.

What appeared in front of me and blasted at max volume on my computer's speaker was the one and only Never Gonna Give You Up.

I got rick rolled by my MATH TEACHER.

This was both epic and disappointing. I just stood there, thinking "what the hell just happened".