While most of adland cracked open beers and tucked into the pies, some opted for further light entertainment. Taking a leaf out of its defunct ITV Sport campaign, Mother arranged its very own streaker - not for the first time. "It's as staple as curry at half-time, air horns and whistles, a co-founder Mark Waites, enthuses, obviously referring to half-time traditions at Mother. The agency's Argentinean team, as well as having to put up with all the jibes, was confronted with a six-foot poster of a naked Maradona.
"They weren't smiling, an onlooker chuckled.
Rainey Kelly Campbell Roalfe/ Y&R rolled out the football napkins, paper plates and England bunting. "It stank of a brewery, one staffer recalls.
"But the atmosphere was electric."
Publicis' latest senior transfer, Derek Morris, used the occasion to make his first major statement to the agency. Uttering: "I have been brought in to knock down the walls that exist within the world of communications, he proved to be a man of his word by having the ground-floor walls removed.
TBWA/London wooed punters to the agency with an exclusive ticket, threatening that anyone attempting to sell it would be forced to watch the Grey showreel on a loop for 48 hours. Ouch - and what an uncalled-for swipe at a rival.
Their Japanese theme included Geisha girls serving saki.
McCann-Erickson's bash included 120 clients, and stragglers were still going at - shock - 3pm. What wild party animals indeed.