CBF Morning Run: Flying blindly through roundabouts, cutting the mustard and sipping a Sticky Situation Cinnamon Bun Stout

I mean, who designed the first roundabout? My guess is that some sorcerer during the Dark Ages conjured up this horrible thing to torture some kingdom or another. Or maybe a dragon fell from the sky and landed in some busy intersection, forcing the peasants in horse-drawn carts to go around this dragon in a circular motion.