Dan, you're nuts.
I know, I know. I would have to be nuts to try to re-assemble my K'NEX Screamin' Serpent roller coaster to be the mirror image of what the directions say. Yes, that would be nuts indeed.
And I already have a 33MB time-lapse video to prove it. :)
Why the mirror image, you ask? Well, it fits in the room better that way. :)