Final answer:
The banker wants out of the bet for personal reasons, which can vary depending on the context of the story or scenario.
Step-by-step explanation:
The banker wants out of the bet because of personal reasons. Personal reasons can range from concerns about the potential financial loss to challenges in the banker's personal life that may prevent them from continuing the bet. It is important to note that the specific reason for wanting out of the bet may vary depending on the context of the story or scenario.