Chapter 4 question

The incident in chapter 4 is that Lorenzo and his mom had a car accident. When mom drove on the crowded street, another smart car drove into her car. The left mirror of that car is destroyed, the man in that got off of the car and was rude to Lorenzo's mother. He reviled her. Lorenzo tried to undo he seat belt and go out to argue with that man. But he lost the rage, he was overcame by the fear. I think the importance to Lorenzo is that he realized he was not that brave to face the annoyance and protect his mother.