A Scotsman, an Englishman and an Irishman want to get in, but they haven't got tickets.
The Scotsman picks up a manhole cover, tucks it under his arm and walks to the gate.
"McTavish, Scotland " he says, "Discus" and in he walks.
The Englishman picks up a length of scaffolding and slings it over his shoulder.
"Waddington-Smythe, England " he says, "Pole vault" and in he walks.
The Irishman looks around and picks up a roll of barbed wire and tucks it under his arm.
"O'Malley, Ireland ," he says,
Spoiler:
