Letter: Who are you?

Sir: "How to recall whatsisname" (23 March). You pose the question but do not provide the answer.

Please allow me. You see your old friend approaching in the street and cannot bring his name to mind. Hiding your horror you greet him warmly: "Great to see you but I've forgotten your name." He tells you his forename (or second name). You clap him on the shoulder and say: "Of course I know your forename (or second name), how could I ever forget it? It's your other name I can't recall."

GEORGE WHITE

Bathpool, Somerset