In a previous life, the incident occurred in a movie theater, where two men with guns had fled after a robbery and, under police pressure, decided to take hostages before escaping.
Coincidentally, that night she and Wen Nian had disguised themselves in casual clothes to watch a movie at the theater.
Wen Nian couldn't possibly hide in the crowd and watch two children be taken hostage, so he volunteered to exchange himself for the two children.
The police were already cautious about hostage situations, and such cases were difficult to handle during the actual operations. Now, with the President involved, the Military Department was immediately alerted.
The criminals were eventually killed, and Wen Nian was saved.
Actually, she hadn't planned to bring this up because she was certain that on March 28th she wouldn't go to the movies with Wen Nian again.
And Wen Nian, busy with the election, wouldn't likely have the inclination to go watch a movie at the theater himself.