Any noise Donnie was making then was static along with the groaning of the zombies, dead air in Stu's ear as he kept his unblinking focus on Billy and nodded obediently, letting Billy take the belt then holding it blankly. It took him a second before he finally figured out what they had both been trying to tell him, then he was moving quickly to yank the belt punishingly tight around Billy's bleeding arm. "It's fine, see? No problemo. We'll get a bandaid. We'll get murder doctor," he said cheerfully through tears.