What turned the mob from fairly reasonable to fierce in France?

The mob in France shifted from fairly reasonable to fierce due to a combination of social inequality, economic hardship, and political repression. The financial crisis, exacerbated by high taxes and food shortages, fueled widespread discontent among the lower classes. Additionally, the perceived failure of the monarchy to address these grievances led to increased frustration and anger. The storming of the Bastille in 1789 epitomized this transformation, as it became a rallying point for the revolutionary fervor that ultimately sought to dismantle the old regime.