How else to explain the agency co-founder, Robin Wight, who belied his 65 years with a dance routine that involved doing press-ups before leaping upright. And always with an attractive account girl.
Meanwhile, we have to ask Leon Jaume if he was scratching an old sore during his spiky stand-up routine at the bash? Hailing Debbie Klein, the joint chief executive of WCRS's Engine parent, the agency's executive creative director simply said that "she wasn't Stephen Woodford".
Hmmm ... Diary knows that Woodford's final days as Engine's chief executive in July 2006 were not his happiest. Nor for a few others, it would seem.
Jaume was more fulsome about Engine's chairman and WCRS founding partner Peter Scott, a man who once said he loved being branded "a relentless bastard". Jaume recalls how he long ago escaped getting fired from WCRS because Scott had been much impressed by the passion he'd shown when playing for the agency football team. And how Scott made him - rather than the agency's insurers - pay the cost of having the wrecked boot of his company BMW repaired. Jaume had locked his ignition key in the vehicle and breaking into the boot was the only way of retrieving it.
We were also intrigued to hear about WCRS's "tell-it-like-it-is" e-mails. While other agencies ask staff to keep the noise down near the office where an important client meeting is taking place, WCRS orders its toilers not to poo in the nearby loos until the client has left the building.