His mother had barely finished her lunch when her son Little Johnny burst through the front door of the house with a huge smile on his face, having come home early from school.
Surprised to see him so soon, as school wasn’t due to finish for another couple of hours, his mother asked him, “Why are you home from school so early Johnny?”
Little Johnny said, “They let me go early because I was the only one who could answer a tough question”.
“Wow, really?” his mother said, “What was the question?”
Little Johnny replied with a grin on his face, “Who threw the eraser at the teacher?”
Image used under a Collective Commons License from: https://commons.wikimedia.org/wiki/File:Cheyenne_WY_High_School.JPG
