"I remember 25 years ago getting on a plane and realized I forgot some important paperwork in the car. The flight attendant let me get off the plane and I ran through the terminal and out to the parking lot to my car to retrieve it. Then quickly ran back in, zipped past the security screener, out onto the tarmac and climbed up the stairs to the plane. It was a rather small airport so it took less than 5 minutes. But I doubt I’d be allowed to do that today."