Obviously, this most often happens if it is four days before Christmas and you're full of Martinis.
So, when Cindy Gallop, a former employee of the now defunct Gold Greenlees Trott, had an inebriated trip down memory lane to the "gold"en days of the agency, she decided to organise a reunion.
It will be held at the Groucho Club at 6.00 pm on Monday 18 June and will be open to anyone who worked at the agency.
A number of the alumni have already been approached, and if they all turn up, the room will be crammed with some of the most recognisable names in adland.
These include Simon Clemmow, Steve Henry, Stevie Spring, Jim Kelly, Kate Stanners, Grant Duncan and Dave Waters.
The only other stipulation for entry is to shout "'Ello Tosh, got a Toshiba?" as you enter.