Cas shrugged. "Angels are every bit as fallible as any other being in existence. Defeating one is difficult, but not impossible. Given the way you handled those creatures outside, I suspect you would manage it. But...I feel we have enough to concern ourselves with for the time being."
Such as figuring out why they were there. That was his primary concern, but only out of sheer curiosity. It was no secret that he didn't care where he was so long as Anna was present with him. So long as she followed, they could relocate again and that wouldn't matter. But if there was something wrong with the people in the area, he was still more than willing to examine them and see if he couldn't find what was wrong with them.
"Though if you'd like to speak of some of your exploits, I'm willing to hear of them," Cas pointed out. "I'm admittedly curious, one soldier to another."
If there was anything he was aware of, it was that hunters all had stories. They were often fascinating. Inspiring. He didn't doubt it would be the same regarding a man who could render himself indestructible.