Former Principal Ben Chavis teases senior Karely Ordaz while Deana Perez looks on during a lecture on economist Milton Friedman. What were doing is so easy, says the man who created the schools success and personifies its ethos, especially in its more outrageous manifestations. (One example: He tends to call all non-white students, including African Americans, darkies.) Although he retired in 2007, Chavis remains a presence at the school.. (Dave Getzschman / For the Times)