20 years ago I got off the Piccadilly line at Heathrow Airport 15 minutes before my departure back to Oz. I can still remember the face drop of the poor 'ol sod waiting in the holding lounge as I boarded the plane 2 minutes before they closed the door.
I've since returned the favour by missing other international flights through ultimately faults of my own making.
However, once on the way to the airport for an international flight with family, our taxi driver swerved suddenly and avoided hitting the car in front of us on the freeway. The taxi behind us which was most likely going to the same destination didn't fair so well and collected the stationary car. Stuff happens, it's not a perfect world.