I remember of a Greek fairy tale, about a man working in a foreign land as an expatriate just for bed and food. After a 7-year work term, the boss gave him three golden pounds and offered to exchange them with an equal number of proverbs, as advice.
The poor man accepted the deal and started walking the 1,000-mile trek to his home.
The first proverb (no details here, to cut a long story short) saved his life from bandits.
The second proverb made him rich, with hundreds of golden coins.
The third proverb was "hold the evening's anger for next morning".
Upon arriving at his home, he saw, from outside the window, his wife kissing a young man on the cheek and thought about killing them both, but he remembered the third proverb.
Next morning he found out the young man was his son.