I think it's a psychology trick, like when you have a really bad pee need and it gets inexplicably a lot worse as you approach your house door. The prospect of

I think it's a psychology trick, like when you have a really bad pee need and it gets inexplicably a lot worse as you approach your house door. The prospect of the end of the flight is getting into your mind and you want to be done with it right now. I'm always astonished at the number of people that unlock their seat belt as soon as the plane lands, even though the "fasten your seat belt" sign is still on for the entire taxi ride.