Synopsis by Mark Deming
It's an unusual day at Springfield Elementary School, as the teachers administer the all-important Career Aptitude Normalizing Test (or CANT), which will determine what is the ideal occupation for each student. Both Lisa Simpson (voice of Yeardley Smith) and her brother, Bart (voice of Nancy Cartwright), are quite taken aback when they get their results -- scholarly Lisa, who has ambitions of a career as a jazz musician, is told she's best off becoming a housewife, while underachieving hellion Bart gets word he'd make a fine police officer. After Lisa's music teacher tells her that her stubby fingers would make a career as a musician unlikely, she develops a bad attitude and starts handing out with a gang of chain-smoking fifth-grade delinquents. Bart, on the other hand, becomes a hall monitor and discovers he enjoys being the long arm of the law. But both Bart and Lisa have to take a long look at their recent behavior when the special teachers' editions of all the school's textbooks go missing -- and Bart discovers his sister is the culprit. "Separate Vocations" first aired on February 27, 1992.