Although concern with white-collar crime has grown considerably in recent years, little research has been undertaken on the workplace misconduct of juveniles. This omission is noteworthy because of the extensive involvement of youths in the labor market. Accordingly, based on a sample of high school seniors, we explored the determinants of youths' occupational delinquency. The analysis revealed that work-related delinquency is affected both by underlying criminal propensities and by contact with delinquent coworkers on the job. It also appears that delinquent youths are selected into negative work environments in which they come into contact with fellow delinquents—an interaction effect that amplifies their occupational delinquency. Finally, the data suggest that associating with delinquent coworkers affects misbehavior not only within, but also outside the workplace. The theoretical implications of these findings are explored.