https://www.youtube.com/watch?v=cSrUKXUQgW0
That happened to me once. I was flying to Florida with a girlfriend and there were about 6 people on the whole flight. It was a DC-10, I think, with two seats on both sides and 5 seats in the middle. We were lying down in middle rows with all the chair arms up. We got extra special treatment from the flight crew and my one thought was, "What a shame it's only a two hour flight!". Stress free flying is wonderful.
That must have been nice!