The reason why we take pains to imagine unpleasant events is that fear, worry, and anxiety have useful roles to play in our lives. We motivate employees, children, and spouses to do the right thing by dramatizing the unpleasant consequences of their misbehaviors, and we also motivate ourselves by imagining the unpleasant tomorrows that await us. Forecasts can be "fearcasts" whose purpose is not so much to predict the future as to avoid it, and studies have shown that this strategy is often an effective way to motivate people to engage in prudent behavior. In short, we sometimes imagine unpleasant events just to scare dark futures off.

Does it mean that you talk or relate to others about possible bad results of their behaviors?
dramatizing the unpleasant consequences