I had a friend who was playing around on one of the school computers, when he discovered a really bad text-based program that seemed to be some sort of bad psychoanalysis program (like ELIZA), looking like this:
"hello, what is your name"
"Bob", typed in my friend
"how are you feeling Bob" replied the program
"why are you feeling bad?"
And so on.
He played with on a fairly regular basis, and told it some surprisingly personal stuff. This was when it turned out that it was not a machine masquerading as a human, but somebody else on the network pretending to be a computer: artificial stupidity