From WSJ:
…a computer program using a database of movie scripts was asked again and again by researchers to define morality. It struggles to do so, and in a conversation recorded by its human engineers, becomes exasperated and ends the conversation by lashing out at its human inquisitor.
Source: Artificial Intelligence Machine Gets Testy With Its Programmer – Digits – WSJ
Remember HAL from Space Odyssey? One would be wise not to exasperate the computer with too many smarty pants philosophical questions. 🙂