"So we had to make sure he was part of it," she added as she admired the dapper Mr Tremain, looking as splendid as a life-size cardboard cut-out could look.
"We will be taking Simon to as many events as we can, although getting him around in a vintage car could be a bit tricky because he won't fit in one."
Sitting on the picnic rug for Sunday's Gatsby Picnic will also be an issue, as he can't sit down.
"But he will be there, standing, of course," Mr Christensen said.
He added that as his boss's pedestrian chauffeur he would ensure Mr Tremain became involved in some "interesting" situations.
"The best thing about it is that he doesn't know anything about it," Ms Scott said with a smile.
"But he'll find out because we'll put a few pictures on the website."
But nothing too embarrassing?
"Oh absolutely," Mr Christensen said, to which one of the lunching staff, who were all wonderfully attired in Art Deco's finest threads, said "and he's paying for all this, of course, although he doesn't actually know that either".
The Tremain team, like many Napier and Hastings firms and businesses, has embraced the great weekend by staging a special occasion get-together to celebrate it.