My wife's siblings and her all have the same weird trait: when things get stressful, they clam up and do this "shut up and let me save the world" thing. Her sister's worked on it a lot because #fireman, but it's a strong compulsion.
The "hmm, maybe if you'd talked to anyone instead of going missing-person" is extra fun when it's a tech thing, as after the stress and the teeth-pulling contextual questions, it's two mouse clicks and an object lesson.
And, when THAT fight's over....