Maybe it was territorial? I'm afraid cavern dwelling animal behavior is a little out of my field.

[Sure the beast sulks away once it realizes its precious brood was safe but she's not willing to test her luck again. Saori shoots Hector an incredulous look, all while trying to resist the urge to smack him upside the head.]

Do I really need to tell you what I think about that?

[Don't worry, she'll wait.]