I have a lovely story from a friend of mine from France. He was christened with a very ordinary first name but no middle name. He always felt that he'd missed out on a middle name. Well, about the age of 10 he started to pester his parents to be allowed to have a middle name. They agreed that if he could choose one and he didn't change his mind, he could have a fully legal middle name for his 16th birthday. Sure enough, he chose a name immediately and stuck to it. And that is why the middle name on his passport, driver's license, tax return and bank statements is Crocodile.