User blog comment:Darkcloud1111/Official "The Sea of Monsters (movie)" Discussion/@comment-5247339-20130322212334/@comment-3146930-20130322221528

Mr. d kind of hates everyone, unless they do something impressive. I remember him saying that Percy only survived one of his quests because of all the training he had given him. If Mr. D is trying to impress someone, he may just be acting friendly or trying to show off his skills as a trainer (even if he doesn't do anything)