What have you heard? That bad guys would rather confess than be interrogated by him? That his steely gaze can cool a room by five degrees? That he can only be killed by a silver bullet, like a werewolf? They're all true, except for the silver bullet part. It might give him indigestion or heartburn, but I don't think it'd kill him.
Think about it, you take a date back to your family's house, you want to make a good impression. You want them to like you. You don't introduce them to your weird Uncle Jethro until, like, the fifth date.