I heard it as "'Thank you, Kind Sir,' she cried as she waved her wooden leg aloft." Around 20 years ago I was working in the geriatric ward of a state mental hospital in New England and one of the patients there was a very polite elderly lady who thanked us for everything imaginable. Only she never said a simple "thank you"; it was always "'Thank you, Kind Sir etc.'" I must have heard it twenty times a day for years. But I never heard it anywhere else until now.