John had to admit, it was either a very good act or very genuine protectiveness. But he hadn't stayed alive as many years as he had by taking anything at face value, so he looked beyond just words, to body language, to Claire's reaction to it. Ultimately, he knew that Claire likely wasn't going to be staying with them much longer, but John had no intention of simply letting her walk out the door.
"Then you're proving our point for us," he finally said. "In the time she was here with no one the wiser as to what was going on, she could have already been stabbed and not gotten back up from it because magic or God decided it, because no one was paying close enough attention."