As politicians, MPs, bankers and leaders of industry, not to mention newspaper editors, grapple this weekend to understand whether Cameron's decisions over a new European treaty set the UK up for success or financial failure, the real talking point hasn't been the behind-closed-scene deals, or the long-term ramifications, but whether Sarkozy snubbed Cameron's hand-shake or not. As with so many things, it's the people and the relationships at the heart of the matter that pique our interest...