A steady stream of teenage boys in bottle green aertex shirts passed me in the narrow corridor. I could tell that they were pupils of Wellington College from the words stitched in yellow embroidery just below their left collars. One boy stopped in his tracks to deliver a message to me.

“S’s brother Daniel is with us” he whispered. “Come to the canteen later to meet him.”

This was very strange. Since when was was S’s brother called Daniel, and how could he possibly be a pupil of Wellington College?