Strangest Chord Progression?

[innermasterpeace]

I'll be asking this on the guitar forum as well. . .
What's the weirdest/most unsettling/freakiest/most evil/most hypnotic/etc. chord progression you've ever found? What song is it from? Who composed it?

I'm just asking around.
I bore the hell out of myself with just 3 chords (I, IV, and V. . . anyway.) and I want to scare passer-bys in my dorm hall.

[PDWAB]

Just play a lot of diminished chords.

[owenbassist]

if you're looking for something evil, just play a lot of tritones...

[sthoma07]

check out some thelonius monk stuff
'off minor' is a good example

[ColdFire]

Try some

I - V - vi - IV (One of my personal favorites)
ii - V - I (You sound recognize this)
vi - V - IV - iii (Works better in minor key as i - VII - VI - v)
vii* - vi - vii* - I (Nice tension that is resolved with the tonic)
I - iii (An often out of place, often unexpected progession to through into the mix)