A teacher is teaching physics. Then he notices a boy is day dreaming. So the teacher asks that boy, “Do you know who Albert Einstein is?”
The boy says “No, I don’t”. “
If you paid more attention to the lesson you should know” scolded the sir.
Then the boy asks the teacher “do you know who Kevin is?”
The teacher says “No I don’t”
“If you paid more attention to your daughter you should know” said the boy.