Why do people keep saying "fire in the backyard"? What does it mean?

A fire in the backyard is generally a metaphor for internal conflicts and disputes.

Source: Zhang Ping's "The Choice": "That's our backyard. If there's a fire in the backyard, others will laugh at us."

Usage: as predicate, subject , object; refers to family conflicts.

Example: Could it be that there was a fire in his backyard? Pei Zheng immediately made the worst plan in his mind.

The allusion of the fire in the backyard

When Duke Wen of Jin was preparing to lead his troops to attack Weiguo, his son, Master Hoe, laughed: "One day, a neighbor was sending his wife back to her parents' home. On the way, he saw a man on the way. The woman suddenly fell in love with her and stepped forward to talk to her with a smile. But when he looked back at his wife, someone was talking to her. "

Jin Wengong thought about it and understood. His son was reminding him. Don't always think about conquering other countries, but beware of fires in your backyard. As a result, he immediately gave up his plan to attack Weiguo.

Now the term "fire in the backyard" is a metaphor for internal conflicts and disputes. But in daily life, it has a more ironic and admonishing meaning.