“Extremists,” was all David said in response to Sarah calling the zombie shelter folks nuts.
He definitely didn't disagree with her, but he was really in no position to talk badly about anyone for differing opinions. Especially considering he'd heard some of the things people said about him. “I have no right to knock anyone's method of survival, especially since I mostly sit here and hope that I don't die and that no one I care about dies. So I have no right to judge, not really anyway, but I do agree. For what it's worth, anyway.” Probably not much. He was used to his opinion not mattering too much to people who weren't Elliot (and Rae, to a lesser extent).
"It was even more funny to my mom when I actually legitimately started believing in ghosts, rather than just little kid believing. She thought that she was doing me a favor but I knew I just looked stupid..." he shook his head and rolled his eyes. She laughed at his ghost costume and he shrugged a shoulder. "It was fun. Less fun when I had to shower and get all the flour off... though I could have made bread in the bottom of the tub, which was quite interesting."
She told him she wouldn't punch him and he laughed hollowly. Little did she know that she probably would break something. "Ouch. One punch is bad enough. And I can't even hit you back. Not that it would probably even hurt."
No zombies to kill was a good thing, wasn't it? David picked the book up and handed it over to her. "Help yourself." He reached into his bag for another couple of books to choose what he'd read next, partially because he didn't quite know what to say to her. "I don't mind sharing."