why do some people still not realise that blue flashing lights and sirens mean "get out of the way, clear the road, emergency vehicle coming through!" and still saunter across roads, stop their cars in the way of junctions and so on? I mean, it's hardly a complicated signal. Light, colour, sound, all indicating that this vehicle is in a rush to save a life and as such has right of way over everything else. How much more obvious could it be?