Siri has a thing about Uncle Fester. It may be that light bulb in the mouth thing he does.
The program that simulated a mental health worker (circa 1980) may have been before your time. People would open up to the program and tell it things they hadn't told another person. The program didn't even have a voice initially (and when it did, it sounded like Bowinkle the moose).
You typed your statement or question into a command like interface and received a text response. There's a lot more info regarding how people reacted to the program, but I think you get the basic idea.