Okay, what did I say? The truth can now be told. Why did Arnold come back in time to take out Sarah Connor? Because robots think we taste like bacon.
No, honestly. The robot in question was originally designed to taste wine via an infrared spectrometer. But when a reporter put his hand over the sensor, the robot identified him as prosciutto.
I have visions of ravenous Roombas rolling up to people like that annoying dog in those commercials: "BACON!!!!!"
Do you have any grasp of how screwed we are? Make peace with your gods.