At this time of year, each year – the bushfire season – the complex nature of human behaviour hits home. Bushfires are a terrible event. The environmental destruction, the loss of property and sometimes lives, the damage to infrastructure, the fear and uncertainty, all take their toll in terms of financial and psychological costs. Extensive time and resources are rushed into emergency responses and the immediate aftermath of the fire – the fire needs to be put out, people need to be safe and have their basic needs met.It is suggested that, of the approximately 60,000 bushfires which occur in Australia each year, one-third to a half are deliberately lit. Some believe that this proportion is much higher.