Devil’s Sister

The Devil walks into a crowded bar. When the people see who it is, they all run out except this one old man. So the devil walks up to him and says “Do you know who I am?” and the old man sips his beer and answers “yep”.
The Devil says “Well, why aren’t you afraid of me?”
The old man looks over and says” I’ve been married to your sister for 27 years, why the hell should I be scared of you.”