I don't know if anyone's seen this, but it's a video series detailing the questions asked of a woman who played a slave at Mount Vernon, the home and plantation of US President George Washington:
[youtube]http://www.youtube.com/watch?v=X1IYH_MbJqA#t=67[/youtube]
Quite amusing, but it certainly makes you think.
Some of the questions are both stupid and astonishing.