Back in 1987 I was driving a self-propelled crop sprayer along a dual carriageway near Milton Keynes when I encountered a milk float, cue a proper duel, with me and the milkman crying with laughter, neck and neck along the road. Mine had a bit more pick-up coming off a roundabout but ultimately his float pulled away up a long shallow hill. Reprehensible behaviour I know, technically racing on the public highway, reaching the reckless heights of 20mph!