Actually, I would say your first example illustrates the Kuleshov Effect perfectly. Two unrelated things related by the mind. If you asked a bunch of people to word-associate with "The Great Gig in the Sky". How long do you think it would take to come up with "Tornado"? They events seem related because of their proximity to each other, not because of an inherent relationship.
The mind also tends to reject anything that doesn't agree with a theory that's been formulated (kind of like the Bush administration). I'll bet if you watch DSOTM/OZ and keep a log of things that relate and things that don't that your don't list would be many times longer.
This is why science is so freakin' difficult, you simply cannot trust your senses/perceptions to be accurate representations of reality in many cases.
I'm not gettin' down on the idea, I just don't see why it needs to be some magical conspiracy when there is a perfectly valid (and experimentally demonstrated) explanation.
