http://www.boston.com/bostonglobe/ideas/graphics/011109_hacking_your_brain/
Speaking of hallucinating... It makes you sick as a dog, but it seems nugmeg is an active hallucinogenic. The amazingly stupid things kids do to get a buzz. Still... nutmeg is better than huffing.
Finally, a flashback from the 1930's...
http://www.flickr.com/photos/polaroid/632255233/sizes/o/
Ouch!