James hadn't commented any further to Logan as he had started to wander off. Most people might assume he was well out of hearing range when Karr spoke, but James had enhanced senses as well. Sure, he didn't make an issue of it much, but that probably wasn't surprising
So, when Karr made his last smartass comment James just stopped walking. Didn't turn around, but spoke just loudly enough that both ferals should be able to hear him at that distance. "You're right. I don't like you. But I'm giving you a fair chance to change my mind." That was a hell of a lot more than most people got, which Logan very likely realized. And with that, the big man resumed walking.