When did the police arrest Pinky's dad in Thirst?

In the story "Thirst," Pinky's dad is arrested after Ma arrives, which adds significant emotional weight to the narrative. This timing is crucial because it indicates the turning point in Pinky's life, marked by her mother's presence and the subsequent disruption of their family. The moment emphasizes the impact of parental figures in a young person's life and illustrates the consequences of their actions. Understanding this context reveals how the sequence of events contributes to the overall themes of the story, such as loss, instability, and the challenges faced by families.