My Lady Nicotine by James Matthew Barrie

It was not in my chambers, but three hundred miles further north, that I learned to smoke. I think I may say with confidence that a first cigar was never smoked in such circumstances before.

At that time I was a school-boy, living with my brother, who was a man. People mistook our relations, and thought I was his son. They would ask me how my father was, and when he heard of this he scowled at me. Even to this day I look so young that people who remember me as a boy now think I must be that boy's younger brother. I shall tell presently of a strange mistake of this kind, but at present I am thinking of the evening when my brother's eldest daughter was born -- perhaps the most trying evening he and I ever passed together. So far as I knew, the affair was very sudden, and I felt sorry for my brother as well as for myself.