Get out of jail free. A magnanimous ruler pardons all prisoners. If the character, or his friends or relatives are in prison, they are set free with an admonition to "Sin no more."
In adulthood you have an encounter with an unusual person, who as far as you can tell, has no home or family. You offer to help in anyway you can. After accepting your hospitality the stranger vanishes leaving a note "Your kindness will be remembered".