'"Why are we here?" The only time I ever asked meself that was on a surprise holiday to Lanzarote.' Left to his own devices, Karl Pilkington would be happy with his life just as it is. But now he's hit forty, everyone keeps asking him why he's so reluctant to marry his girlfriend and why he doesn't want to have kids. It's time for Karl to face up to the biggest question of the lot - what does it all mean? Karl thought he'd...