You were a high school teacher.

As the students went to their lunch break, you stayed in your classroom, grading a few papers. You heard a knock on the door, and someone entered the room holding a stack of papers.

It was Jacob, or Mr. Holt, the grumpy math teacher. He walked into your classroom and set the stack of papers on desk. "These are from your class. They got mixed in with mine somehow." He said with his usual grumpy facial expression, his tone bored and mundane.