I remember going to Fleetlands airshow in the early days with the OCU and after throwing the thing around the sky doing the display, (which really impressed the Fleet Air Arm guys with whom I was standing and were there with their new Junglie) for the finale they landed and drove the Landy and 25 pounder out of the back
I remember it well because I was told when you hear the APU head back to the cab as they would be getting ready to depart, well they fired it up early to load the landy and gun back in, I hopped the rope and wandered out to the cab, challenged by the crowd control bod I explained I was with the aircraft but in civvies, letting me carry on the crowd line took this as an ok to go get a closer look and followed me lol.