Billy arrived late to class one morning.
His teacher looked at him and said,
“Billy, don’t walk into class late again.”
The next day, Billy was late once more.
But instead of walking through the door, he crawled into the classroom on his hands and knees.
The teacher sighed.
“Billy, I thought I told you not to come into class late!”
Billy smiled and replied,
“No, you only said I wasn’t allowed to walk into class late.”