Talk about too dumb to live... I don't even feel like doing this as in-depth as I did with my others, except for the end.
On a riverbank, a young boy and an older teenager are using the koyukkuris of a yukkuri family for batting practice, ignoring the pleas of the parents. Eventually, the boy leaves, and the teenager tells the parents he doesn't mind if they want to go home since it's very close by, though he advises them to move further away from the river, quoting 'Rivers are death flags'. They acknowledge it, since they're aware of the difference in power.
"Well, to be honest, I did tell you the same thing last week." The man says, looking at the black paste stains on the pillars of the bridge; last week's pitching practice.
So let me guess the family in question never move their home away from the river but kept moving it along side it? Wow, I'm surprised they haven't been washed away by a sudden raise of water level within the river.