Harvard University biologist David Haig has spent the last few years systematically debunking the notion that the relationship between a mother and her unborn child is anything like the rose-tinted idyll that one usually finds on the glossy covers of maternity magazines. In fact, it is anything but. Pre-eclampsia, a condition of dangerously high blood pressure in pregnant women, is brutally kick-started by nothing short of a foetal coup d'etat. It begins with the placenta invading the maternal bloodstream and initiating what, in anyone's book, is a ruthless biological heist - an in utero sting operation to draw out vital nutrients. And I'm not just talking about baby Gordon Gekkos here - I'm talking about all of us. The curtain-raiser is well known to obstetricians. The foetus begins by injecting a crucial protein into the mother's circulation which forces her to drive more blood, and therefore more nourishment, into the relatively low-pressure placenta. It's a scam, pure and simple, which poses a significant and immediate risk to the mother's life. 'The bastard!' says Andy. 'Shall we get some olives?' 'And it's by no means the only one,' I continue. In another embryonic Ponzi scheme, foetal release of placental lactogen counteracts the effect of maternal insulin thereby increasing the mother's blood sugar level and providing an excess for the foetus's own benefit. 'A bowl of the citrus and chilli and a bowl of the sweet pepper and basil,' Andy says to the waiter. Then he peers at me over the menu. 'So basically what you're saying then is this: forget the Gaddafis and the Husseins. When it comes to chemical warfare it's the unborn child that's top dog!' 'Well they definitely nick stuff that isn't theirs,' I say. 'And they don't give a damn about the consequences.' Andy smiles. 'So in other words they're psychopaths!' he says. BABY