The legend of the worst boy in the world by Eoin Colfer

Penguin, London, 2007
(8+) The sight of Will dressed in his rabbit pyjamas strolling down the new road, walking straight along the line in the middle, but unaware that this new road meets the old road is enough to make the reader call out. Fortunately mum is on the run, chasing her 2 year old Will, but he thinks it is a game, so he runs faster. How all of this is involved in a story about a boy talking to his grandfather each weekend, trying to offload some of his worries is a very funny take on families and how they intersect.
Fran Knight