When people perform role-violating behaviors that are diagnostic of membership in a stigmatized group, they risk identity misclassification - i.e., being mistaken for a member of that group. Because false stigmatization raises the possibility of interpersonal punishment, role violators who wish to avoid it must communicate their non-stigmatized status to others. Conversely, self-protective strategies such as self-affirmations (Steele, 1988) that do not communicate non-stigmatized status should fail to reduce role violators' discomfort. Consistent with this assumption, heterosexual men who publicly violated a gender role norm-and thereby risked misclassification as gay-reported heightened discomfort and diminished implicit self-evaluation unless they directly or indirectly communicated their heterosexual status to their ostensible audience. Moreover, a standard self-affirmation task failed to protect heterosexual role violators from discomfort. Discussion highlights the implications of these findings for research on social role adherence, stigmatization, and self-affirmation.