What no one dares stop calling the Special Relationship has been defined down the years by images - Ronald Reagan and Margaret Thatcher dancing, George W Bush joking about sharing Colgate with a grinning Tony Blair squeezed into crotch hugging chinos and years later spinning a be-suited and grim-faced Gordon Brown around in a golf buggy.

BBC: David Cameron, Barack Obama and the Special Relationship

Philosopher Julian Baggini has written an article for Demos calling for a more honest relationship with error-making in public.

BBC: Today - 'Our error'

He was a high-relationship corporate salesmen, personally calling on or addressing, by his estimate, 3000 or more top executives a year, worldwide.

FORBES: Hurd's Hurt

The two leaders praised the continuation of the "special relationship" between Britain and America, with Brown calling it resilient and constant.

CNN: Obama packs busy schedule into day before G-20 summit

Although Romans have had a love-hate relationship with all things papal since the Catholic Church began calling Rome its home since the 1st Century.

BBC: Easter in Rome

Still, Sonderegger continued calling his birth mother "Jarrett" and made it clear that their relationship was a friendship and not necessarily parent-and-child.

CNN: Missing pieces: The drive to find birth parents

So the UK is calling for Europe to change at a moment of uncertainty in the Franco-German relationship.

BBC: Europe: A week of speeches and symbolism

Being late, causing embarrassment, confrontational behaviour, a public insult or calling attention to a mistake can all cause loss of face and could seriously damage a business relationship.

ECONOMIST: Business travel

John XXIII was famed for calling the Second Vatican Council in 1962, which ushered in great changes in the Roman Catholic Church's relationship with the modern world.

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