A professor didn’t want to accept a student’s paper.
Student: “Do you know who I am?”
Professor: “I neither know nor care. And don’t try to frighten me!”
But the professor still accepted the paper. Why?
A written exam. All but one student submitted the papers, but he kept writing after the time was up. Therefore, the professor refused to accept his paper.
When the student realized that the professor didn’t know his name, he put his paper in the middle of the stack and ran away.