#47: They know when you are sleeping
Most teachers don’t want to confess this to their students but they can see you when you are sleeping. They just choose not to wake you up because most of the time they wish they could be sleeping as well. Instead, they would rather make fun of you like in the picture here.
This student really passed out in the middle of class, it wasn’t just a little bit of sleep but a lot of it all at once. Just look at the way he is sitting, the young man is completely gone. The teacher didn’t waste a second getting a picture in to blackmail him with later.