I once flew in a 737 from Heathrow to Edinburgh and Captain Orlebar was at the controls. As luck would have it, Concorde was in front of us in the take-off queue. He gave us a blow by blow commentary on Concorde’s take off, including speeds, cockpit calls, fuel consumed etc. etc. We then enjoyed an inflight commentary on the PA including informing us that we were “flying as high as a 737 can go”. The man was an enthusiast for sure.