I got detention for being ahead in reading. We were reading a text in class, people got turns to read part of the text out loud. And they were reading so slowly that I was way ahead of them. So when the teacher gave the turn to read out loud to me, I didn’t fully know where the previous reader had left.
My neighbour whispered the next line to me, but that line appeared twice in the text.

So I started reading from the second occurence of that line but with the next line after that there was a lot of confusion in class.

The teacher told me to stay behind for detention, because of that.