What things wierd you guys out? For me: 1. Pilot waves (and particle/wave duality). 2. Parallel universes (if they exist). 3. Infinite regression (as in two mirrors facing each other). 4. Electrically positive 'streamers' (or stream of charged particles) coming out of my head and reaching out towards an overhead thundercloud when lightning is about to strike. 5. Warped and slowed down speech (the bit where Hal is shut down in 2001 A Space Odyssey scares the crap out of me). 6. My mind at times.