But the demon in that story was stronger than anyone else, wasn't he? I think -

Um, maybe it's something that's hard for me to understand, because I'm not a human either, but - . . . If the thing that made him that way was "having a human's heart," then feeling things like that, probably - ... it isn't really something that would make you weaker, is it? You're already really strong, so getting upset sometimes won't be able to make you weak, will it...?