This occurs when the driving falls far below what would be expected of a competent and careful driver in circumstances in which it would be obvious to a competent and careful driver that driving in that way would be dangerous. In this connection “dangerous” refers to a danger either of personal injury or of serious damage to property. The difference with careless driving is that with careless driving the standard is simply ‘below’ that of the careful and competent driver whereas with dangerous driving the standard has to be ‘far below’ that of the competent and careful driver. Thus the difference between the two offences is simply a qualitative one.