" An intelligent and industrious crofter was proud to show our commissioner a cart of his own particular invention, and which, though furnished with what is proverbially regarded as a superfluity in the shape of of a 'third wheel', seemed exceedingly well adapted to its purpose. It was in use at the time for the purpose of driving home turnips from the field, the team consisting of the owner's two cows; and a more tractable or docile team it would have been difficult to imagine, indeed the assurance was given by a neighbour that not only did they obey their owner readily and efficiently in the draught, but that one of them, in particular, would come from the most distant part of the holding whenever he chose to call and wave his hat as a signal that her presence was wanted for business! "

― William Alexander , Rural Life in Victorian Aberdeenshire