[hga]

And while it seems to be broken in the copies of EMACS I just tried (stock GNU EMACS on Debian squeeze and wheezy), M-x psychoanalyze-pinhead is supposed to feed it Zippy the Pinhead quotes (right now it only feeds it one stock quote about cabbage).

A lot more fun was when a professor in a class I was taking in 1978 logged into a Stanford computer, and connected PARRY, a serious attempt at simulating a paranoid schizophrenic (http://en.wikipedia.org/wiki/PARRY), to Eliza.

Ah, reading the Wikipedia entry I see this is a famous enough concept to have been immortalized in an RFC by Vince Cerf: https://tools.ietf.org/html/rfc439

[technomancy]

Sadly legal concerns in Emacs 22 resulted in the Zippy quotations being replaced with the cabbage quote: https://en.wikipedia.org/wiki/Zippy_the_Pinhead#Appearances_...