progress of another, it is immediately important that an accurate assessment is made of whether or not this obstruction is deliberate and whether retaliation is required. It is more likely that a verbal or physical display of annoyance will be noticed, and an accurate assessment is needed so that an appropriate level of aggression can be displayed . Otherwise the aggrieved can expect to be ridiculed rather than supported. The car, therefore, can be seen to straddle the boundary between personally owned space where, within limits, the individual's behavior is accountable only to the standards he has set himself, and the public domain, where behavior is regulated by general acceptability and explicit rules. "Cures" for Road Rage It is important that we challenge the thoughts that provoke anger before there is opportunity for the successive waves of anger to compound. The sooner we intervene in the "anger cycle"17 the more effective the intervention is likely to be. The tactic is to concentrate on mitigating information that might put the provocative circumstances in a more reasonable light. However, Zillmann emphasizes the point that at already high levels of rage people are often unable to think in a rational manner and are likely to dismiss mitigating information regardless. Drivers must also be advised to pay more attention to their own level of emotion; the evidence suggests that drivers who allow their emotions to get out of hand behind the wheel represent a greater risk to themselves than to those around them. It