"Of course I'm worried about ya, dummy!" said Heiji, raising his voice a little. He seemed actually incensed by the question. "Look at ya, spacin' out like that! I know what that rat said to me; I can't imagine what he said to you!"

"Whatever it is, he even had Hershel thinkin' about what kind of stunts he could pull to get outta this mess. And Snake -- he was tryin' to pick a fight with the old man. Snake! I ain't ever seen that guy break a sweat before, not even when that elevator was filling up with icewater up to our ears. But he's sure hot under the collar now!"

Basically, the way this ultimatum had the people around him acting was just... really unsettling. Worse, Calhoun had convinced Hershel that he was some kind of murderer, and that was just wrong.