The Shrubstitute
You’ve probably never heard anything like this before. You thought you heard your teacher say that you’d have a substitute while he was away for the week. But no, he said that you would have a Shrubstitute Treacher instead. The Shrubstitue Treacher is here to keep an eye on your every move.
He is emotionless. He doesn’t speak, blink, or move. But you may be sure that he sees everything and will inform your teacher of any mistakes when he is away. Keep up the good work, kids, or else the Substitute will tell on you!