So, assuming Vance is actually telling the truth, what he did was order his kids to stop playing a game they went to go play, because he was triggered.
I'm sure that led to crying and resentment, of course met with resolute double anger and yelling.
Taken from their play for no good reason, the evening wasted, the kids get to go home and watch Dad load his guns silently.
A morality tale, you might say.