Attaché Case Hypothesis (1.1)

One day, B’s step-dad went out and bought a new attaché case. When he made B a present of his old one, B was pretty pleased. Even if it was a bit scratched, he could put all his books inside. They fitted in a pretty neat way. There was a special folder for paper and three clips for pens. When he walked to school, he felt pretty important. - Just like a grown up.

There was just one snag with the attaché case. When he wanted to run, one of the locks flicked up. It was the same problem when he knocked the case against something. – B asked his step-dad if he had the key, so he could lock it. His step-dad couldn’t find it, but said not to worry he would see about getting another key cut. – Trouble was his step-dad forgot all about the key. B had to like and lump it, the fact the lock flicked up whenever he ran or knocked it against something.