Karkaeology: The Karkus Licks a Stamp

"Based on a true story", it says here - and it sort of was. The Space Policemen's collision with a revolving door, and the Karkus' misadventure with the same (plus bicycle) were witnessed in real life but played out by confused fans and ahotel entrance and overseen by the mentioned Jamas, Jon Preddle, Alistair Hughes and me at a SF convention in Wellington in - ooh, 2000 or so? You can't make 'em up, but you can adapt them.