The IMonk has a post using the style of the C.S. Lewis book The Screwtape Letters* about Christian schools.

*The story takes the form of a series of letters from a senior demon, Screwtape, to his nephew, a junior tempter named Wormwood, so as to advise him on methods of securing the damnation of an earthly man, known only as “the Patient.” -wiki

IMonk:  The Vilesidious Letters: On Christian Schools 

I cannot believe you were unaware that our influence within institutions such as this Christian school has created results that are far beyond anyone’s projections. In the particular school your patient has chosen, more than 80% of the graduates have rejected the Christian faith within three years of graduation. Even with a small rate of remission- often quite temporary- we can expect magnificent harvests from within this particular segment of the enemy’s camp. Impressive, by any standard.

Evangelicals have become great believers in their various systems, institutions and programs. It is a mark of the contemporary church that its illusions of external prosperity have almost completely blinded it to its poverty of actual spiritual power. Our agents move almost at will within many evangelical institutions, and it is almost a joke at the lowest levels of hell to see what abandonment’s and compromises are possible in the name of such absurd concepts as “relevance.” I have to admit that occasionally I have to pinch myself to see these evangelicals tossing aside every weapon and treasure they have on such grounds as “avoiding boredom” or “church growth.”

IMonk Michael Spencer ( a Christian school teacher) takes a shot at the current call by The Southern Baptist Convention leaders to reject public school. Spencer is a Southern Baptist minister as well.
Good read.