In the small book Real Cornish Humour compiled by Cornubiensis can be found -
One characteristic of Troon men was the popularity of over - large cap (and leather 'scrum-caps with earflaps for the boys), it can be hot cold and windy. A new doctor at Cambourne was trying to impress a Troon patient to whom he thought, cause-abd-effect would mean nothing.
DOCTOR: "Now suppose I were to cut off both your ears, what would happen to you?"
PATIENT: "I should go blind, doctor, I spose."
DOCTOR:No, no no- not bind, man, deaf: you'd go deaf, f course."
PATIENT: "NO, DOCTOR, BLIND, LIKE i said."
DOCTOR: (SIGHING) "And why is that, then?"
PATIENT: COS MY YEARS DO KEEP MY AT FROM FALLIN DOWN OVER MY EYES."