[knock] (some|) sense into {sb}

to attempt to make someone understand something, often forcefully or through persuasion

After his repeated mistakes, his mentor decided it was time to knock some sense into him and provide a stern wake-up call.
When my friend was being stubborn about a dangerous situation, I had to knock some sense into them by highlighting the potential risks and consequences.
I tried to knock sense into my friend by explaining the risks, but he seemed oblivious to the dangers.
She attempted to knock sense into her coworker by providing concrete evidence and logical arguments to support her perspective.
His parents decided it was time to knock some sense into him after his reckless behavior put his life at risk.