I just watched The Truman Show a few days ago. I interpreted it as a story about a schizophrenic who keeps getting crazier, eventually experiencing a full out break and dying of exposure. The scenes with the production crew and audience are actually from the perspective of the schizophrenic's imagination as he tries to rationalize why so many apparently weird things keep happening. The scenes with Truman in them are Truman's retrospective exaggerations and distortions of events that were in reality relatively innocuous. All this allows you to see how real some schizophrenics think their delusions are.

Upvoted for making me laugh until it hurt.

You could probably get sufficiently-twisted kids to do this on the usual Halloween. Dress them up as professors of philosophy or something; it'd be far scarier than zombie costumes. (This would actually be fantastic.)

Alternately, dress up as a "philosopher" (Large fake beard and pipe, maybe?), set up something like a fake retiring room on your front porch, tell small children that their daily lives are based on subtly but critically broken premises, and give them candy. (Don't actually do this, unless your neighbors love or hate you unconditionally. Or you're moving away soon.)