Teacher when boy comes in late: You’re late. Where were

 Teacher when boy comes in late: You’re late. Where were you?

Boy: On top of Blueberry Hill

Teacher after another boy comes in late: Where were you?

Boy: On top of Blueberry Hill.

Teacher after a girl comes in late: Lemme guess. You were on Blueberry Hill aswell.

Girl: No, I am Blueberry Hill.