Retaliation has occurred when a sexual harassment victim suffers a negative action as a result of the harassment. For example, a complainant be given poor evaluations or low grades, have their projects sabotaged, be denied work or academic opportunities, have their work hours cut back, and other actions against them which undermine their productivity, or their ability to advance at work or school, being fired after reporting sexual harassment or leading to unemployment as they may be suspended, asked to resign, or be fired from their jobs altogether. Retaliation can even involve further sexual harassment, and also stalking and cyberstalking of the victim. Moreover, a school professor or employer accused of sexual harassment, or who is the colleague of a perpetrator, can use their power to see that a victim is never hired again(blacklisting), or never accepted to another school.