”...what can he do?”
He can ManUp and take responsibility for his actions.
A little bird once told me that long term happiness is found when we do the right thing, even if it hurts us. It may seem difficult at first, and it probably is. But the personal growth and maturity needed to address life’s future issues is gained by doing the right thing… That means, treat others how you would like to be treated. That also means taking responsibility for doing the wrong thing, like driving without insurance.