A colony of prawns lived under the sea, where they were very happy for many years. Two, in particular, were great friends. They were called "Hans" and "Christian" and they had great fun playing together on the sea bed. Then, one day, a family of sharks moved into the area and started to eat all the prawns. Matters came to a head when one of the sharks ate Hans.
Christian went to see the Fairy Cod Fish and asked if he could be changed into a great white shark. The Fairy Cod Fish said "Now are you sure you want that? You must realise that sharks are not universally popular". Christian explained that his plan was to become a huge, great white shark, big enough to chase all the other sharks out of the area so that his remaining friends would be safe. So, the Fairy Cod Fish granted his wish and "whoosh" he was instantly transformed into a great white shark.
So he chased the other sharks out of the area and then returned to the prawn colony. To his great disappointment his friends would not let him in! "NO" the said, "you're a shark---- you'll eat us".
"No, I'm not really a shark" he replied , "It's me, Christian"
"Well you look like a shark to us!" they said, "go away!"

So he went back to the Fairy Cod Fish, and asked to be changed back into a prawn. "But why???" said the Fairy Cod Fish, "I know that sharks aren't always popular, but it's got to be better than being a humble prawn!"
"But I miss my friends!" said Christian. So the Fairy Cod Fish changed him back again.
He returned to the colony and knocked on the door. "We've told you once!" came the reply, "Go away!"
"But it's me" he pleaded. "I'm NOT a shark, I'm a prawn again, Christian!"