What do you think after reading Nails on the Hedge?

This article tells the story that dad used nails on the fence to let his son learn to control his emotions and try not to get angry, so that his son can realize this profound truth and get rid of the bad habit of losing his temper.

If you lose your temper with others, it is equivalent to stabbing someone in the heart. Although you apologize, it is equivalent to pulling out the knife, but the trace left by the knife is like a wound left by the heart. No matter how you apologize, it's hard to get back.