It sounds like the plot of a Hollywood movie. A world-famous actress out for revenge on her late husband's arch business rival. A tale of bitterness among New York's super-rich.
When Ed Artzt, Procter & Gamble's chairman and chief executive, strode to the podium in the ballroom of West Virginia's Greenbrier to deliver the keynote address at the 1994 convention of the American Association of Advertising Agencies, nobody had any idea of the bombshell he was about to drop.
Geoffrey Jones can claim a unique place in the history of a UK ad industry in which his career was fleeting.
There is irony in the fact that somebody who helped develop some of the biggest campaigns - from the Marlboro Man to the Jolly Green Giant - should later be lauded as the man who showed advertisers with shallower pockets how to thwart them.
A more bizarre early warning to advertisers not to underestimate the web's power would be hard to imagine than an eager-to-please chicken that appeared to obey any online order given to him.
One of the global ad industry's biggest-ever wake-up calls came in October 1991.
PT Barnum wasn't just one of the greatest showmen who ever lived.
They say the camera never lies but, in advertising photoshoots during the 60s, it frequently did.
To those of a certain age on this side of the Atlantic, Stan Freberg will always be synonymous with comedy songs such as his St George And The Dragonet spoof of Dragnet and Elderly Man River, which anticipated "political correctness gone mad" by decades.
Although Daniel Starch can't claim to be the father of market research - its origins go back long before his birth at the end of the 19th century - his pioneering work can be said to have helped transform it into the potent tool for advertisers that it has become.
The 51 years that separate the broadcasting of the world's first radio commercial in New York and the first radio ad to run in Britain are testament to the huge differences in cultural attitudes to the medium on each side of the Atlantic.
"Our job is to resist the usual," Ray Rubicam once said.
"The time has come when advertising has, in some hands, reached the status of a science. It is based on fixed principles and is reasonably exact. The causes and effects have been analysed until they are well understood."
It was the mid-60s when British advertising started having a voice of its own.
George P Rowell did more than almost anybody to take the US ad industry into the modern age.
The love affair between Soho and Britain's ad agencies has been ongoing for more than half-a-century.
A monster truck called Bear Foot did more than crush a line of cars into heaps of twisted metal for a 1990 commercial aimed at wowing US TV audiences in the most spectacular fashion.
Marshall McLuhan, the communications theorist who famously declared that "the medium is the message", had a love/hate relationship with the ad industry.
Long before product placement and programme sponsorship were allowed on British TV, shoppers' guides - commonly known as "ad-mags" - gave advertisers access to audiences outside the hourly ad-break quota.
The increased globalisation of advertising has brought with it some significant dangers.
It seems appropriate that the age of celebrity endorsements should have been launched through the coming together of two of the biggest larger-than-life characters from the barnstorming days when Hollywood was evolving into the movie capital of the world.
Tesco became the first British retailer to sign up to 'If This Then That' last week, allowing technically-minded customers to set up automatic grocery orders on Tesco.com.
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