Parents teach in the toughest school in the word: The School for Making People. You are the board of education, the principal, the classroom teacher, and the janitor, all rolled into two. . . . There are few schools to train you for your job, and there is no general agreement on the curriculum. . . . You are on duty, or at least on call, 24 hours a day, 365 days a year, for at least 18 years for each child you have. Besides that, you have to contend with an administration that has two leaders or bosses, whichever the case may be.