You know, if I knew nothing about the law, but assumed that I could skim a couple books and pass the bar exam, I'd have to be some kind of combination of arrogant, disrespectful, and crazy.
Practicing law is a different story. Although a significant percentage of law school has very little relevance to the day to day practice of law it would be an exaggeration to claim that law school doesn't do anything to prepare you for practice as I claimed for the bar exam.