Comment by johnchristopher

> Well, this depends a lot on what kind of people you spend your time with. I know at least two people in my circles (let me put it this way: they both slightly schizophrenic traits) about whom I would not be surprised if they came up with such ideas.

That argument is self contradictory since you justify their behavior by invoking their specific and out of ordinary mental traits, which reinforces the idea that removing a passenger seat car to sleep directly on the floor is not reasonable, normal or expected.