If you remember in episode 50 Betty and Julie got caught bullying and they were both soundly spanked. For a while they stopped but then the headmaster got a call from a mother of a junior girl that Betty had taken her lunch money. He called Betty to his office and after a severe scolding she got a sound hand spanking. Then he put her in the Punishment Tray holding the cane in front of her which is going to sting her bare bottom