Parties that stray too far from the aforementioned riverbank, marsh or meadow end up in the wilderness (Labour 1983, Tories 1997 and 2001). Cameron knows this, I know this and I would like to think most people on here know it too. ..... He will have enjoyed the comfort blanket of a long period of sustained poll leads since Cameron became leader, but starts to panic at a wobble in Brown's first weeks and the first sign of grape shot from the newly elected PM and the auld ...