A Scotsman picks up a manhole-cover, tucks it under his arm and walks to the gate of The Olympic Stadium
"McTavish, Scotland ," he says, "Discus," and in he walks.
An Englishman picks up a length of scaffolding and slings it over his shoulder.
"Waddington-Smythe, England ," he says, "Pole vault," and in he walks.
Then an Irishman looks around, picks up a roll of barbed wire and tucks it under his arm.
"O'Malley, Ireland ," he says, "Fencing."