Board Thread:Episode Discussion/@comment-14138255-20161030153351/@comment-25266931-20161102215033

Cardin was saved by Jaune from the Ursa and that's when he started leaving Jaune alone. That was out of respect. You can tell by the way his voice sounds right before Jaune tell him off. Or at least it sounded that way to me. Like he was in awe. Now if Jaune saving his was reason to give pause to bothering him anymore, why not see Nikos as respectable after stomping his whole posse?

And like 73Anon52 said, Cardin was in town at ground zero when Ruby froze the dragon. I think if nothing else he heard second hand what happen as they left. Ruby and Yang heard about it from Qrow soon after, so people know what went down.