Ah......the Wessex wiper motors! On one of my early solo fights (in the rain) in the queen of the skies it was somewhat distracting to observe the smoke and smell of burning coming from the co-pilots wiper motor. After some anxious moments wondering how this was possible and considering multiple turning off of switches, a dim recollection from ground school about this bizarre arrangement provided a solution - and saved us from the embarrassment of the crewman in the cabin firing off the fire extinguisher whilst struggling to climb up through the co-pilots seat.
And they were considerably less effective on our flat screen at slower speeds than on the curved and faster E-type ..... back in those days Teutonic tourers were for insurance salesmen not lords of the skies.
Hat, coat, door....