Not so long ago, in a place not too far away, there lived a boy who would only eat Frubes. In his defence, he was four years old and Frubes are very nice. For those who have never had the delight of eating a Frube, they are long thin packets of yogurt that can be peeled open and sucked out. The particularly adventurous can even try to suck all the yogurt out in one go. Despite these considerations, the Boy's parents were not best impressed with their son's eating habit. "It's a phase; he'll grow out of it." They said to one another, the classic excuse for unusual behaviour in children, an excuse that is generally used until their twentieth birthday.
For six months they did nothing about it and the boy seemed to suffer no ill effects. He asked as many questions as usual, ran about with the same vigour and threw things in the toilet with the same regularity. As his fifth birthday approached his parents decided that enough was enough and they were going to cure him of his attachment to Frubes. Well, they tried everything: chips, cakes, chocolates, waffles, three course dinners, lobster, quail eggs, burgers, in desperation they even tried healthy foods! But it was all to no avail, he shook his young head at it all and went back to happily sucking on Frubes. When they took away his Frubes he stopped eating completely and threw tantrum after tantrum.
With all options exhausted, they took him to the doctors who after much prodding, poking, question answering and no less than three blood tests, pronounced him perfectly able to consume other foodstuffs. His parents shared a horror filled glance and asked what the problem was. Their doctor scratched the back of his head, uncertain whether his conclusion would satisfy them: "Your son is simply too lazy to do anything else. He doesn't want to chew, he doesn't want to lift up a knife and fork, it's all just too much effort."