My colleague, who until very recently had been very friendly, barely acknowledged me when I asked for help in zipping up my multi-coloured chiffon dress. I questioned her coldness.

“You know perfectly well why we are no longer friends”, she replied. “How could you forget what we did with my aunt?”

I hung my head in shame at the memory, then vowed to forget it as soon as I could. Under no circumstances should TPR ever learn this dreadful secret.