Using a sample of adjudicated French Canadian males from the Montreal Two Samples Longitudinal Study, this article investigates individual and social characteristics associated with differential cost avoidance. The main objective of this study is to determine whether such traits are randomly distributed across differential degrees of cost avoidance or whether they reflect some degree of rationality. Differential cost avoidance is a composite measure that includes the ratio of self-reported career length to officially recorded career length, the ratio of self-reported offending gravity to officially recorded gravity, and the ratio of time "free" to periods of incarceration. Findings reveal that it is particularly difficult to predict differential cost avoidance at early ages. The main predictors of the residual degree of differential cost avoidance in the early 30s include substance use (especially drugs), the accumulation of debts, and the use of violence in the perpetration of crime. Implications for desistance research are discussed. (Published Abstract) Tables, notes, and references