In Foucault's book, he brings out the history of sexuality into an open arena of different perspective.  For centuries, sexuality was automatically defined as one thing and then put into this sort of box that became the public standard.  Anything defined outside of the 'box' was deemed inappropriate and sinful.  And people committing these acts were thought to be outcasts or diseased.  In the story about the farm hand from Lapcourt, the town sent him away for life to be scientifically studied, and try to speculate why he was acting out in this manner.  Did he really have to have the lab rat treatment for what he did?  It just tells me that the authorities involved were the ones who were ignorant even though they had this 'know-it-all' thinking.  Would their studies be even accurate because of their bias?  I think that Foucault does a good job of laying the facts out on the table, and then in turn leaves it to the reader to formulate their own ideas on sexuality.