Sean has been teaching in promoted posts for over 30 years. Edinburgh-born, he has an Irish and English background, as well as relatives in France, the USA, Malaysia and Vietnam. He loves music, literature and sport of all kinds, supporting Hibs at football, Scotland at cricket and Leitrim in Gaelic games. Despite this, he generally finds the glass is half full, but is sometimes not sure whether it contains stout, tea, or Irn Bru.
No matter. With three school generations of pictures and reminders of important moments, there was much to marvel over: pupils' fashions, despite school uniform, have changed considerably; certain staff seem either unaccountably young then or mysteriously old now – depending on how you look at it.
Like any family album, smiles and tears were conjured up as we reflected on these faces who had been the embodiment of the school community over the past two decades.
Applications for tickets flood in from all over the country, and families from every state in the union, who are lucky in the ballot, get to visit the White House south lawn, roll eggs, take part in arts and crafts, or meet celebrities from all areas of life.
This year some lucky youngster played a set of doubles with Barack Obama against Chris Evert and Andy Ruddick, another played basketball with him, some listened to the Obamas reading from "Where the wild things are", and there was food and music as well.
After a nine hour day at school, watching more of the same is hardly entertainment.
In addition, as previously demonstrated, admitting documentary-makers into your world can be a big mistake.
Condensing a year of life in a complex organization like a 2000-pupil secondary school can only produce a snapshot – and the impression left will depend very much on where the camera is pointed and how the content is edited.
As if job-seeking pressures were not enough, this building with sweeping lawns and vaulted halls was completely overwhelming. Bizarrely, they said, it had been built as a children's orphanage in the early 19th century, and the giant windows were positioned at such a height in the rooms so that the children would not be able to see out!
So, it was a strange place to be embarking on a career to be spent teaching young people, during which, one would have thought, the whole point was for them to look out of the windows, at least metaphorically.
I still remember the maroon Osmiroid 75 fountain pen I received as a tenth birthday present. In the world outside, folk were already frantically clicking their retractable biros, but in school, the pen and nib I was ineffably proud of still ruled – the route to better writing and smarter presentation.
Early in my career I swooned from the alcohol based fumes of the banda mimeograph, while friends in offices were operating swish new photocopiers.
The tradition of the lad o’ pairts is one treasured by Scots and Scottish educators - we want our pupils to have the broadest choice possible of subjects and experiences in school.
It is a vision goes far beyond the timetabler’s art, a belief that was reaffirmed for me twice in one day.
Every month, the night before the new moon, all public lighting is switched off and the narrow streets are lit solely by paper lanterns in doorways and windows. It provides a different perspective, so no wonder that it was here that I had a fairly serious home thought from abroad.
In a sense, it was an odd end to a peculiar year. Teacher training back then was different; working now with probationers I’m inspired by their knowledge and reflection on their craft.
In the mid seventies we were underwhelmed by the lectures on sociology, psychology, and method, and cast adrift in our teacher placements.
A Friday evening in December and I’m stopped at traffic lights in Edinburgh's West End.
In a gusting wind, the sleet is charging down Lothian Rd like a man chasing after his hat, and next to the car is a line of youngsters queuing for the under sixteens' disco.
However, I cheered up when I realized there were only two questions - keeping it short and simple is often a short cut to real insight.
The first of the two questions, both asking respondents to reflect on being teachers, asked: "What do you know?"
