“Sadness,” writes the author of these brutally frank revelations, “is not just a habit. It is a way of life.” A way of life in which “crisis” is king, and where mentally exhausted starvelings float in a half-lighted world of debased values, overpowering hungers and sudden-flaring violence. There has never been a criminal confession better calculated to discourage imitation by thrill-hungry teen-agers. This is the unadulterated, unglamorous, unthrilling life of the SAD BOY.