i wrote in his biography that he revived the story of vlad the impaler for awhile, so i think as long as you have fun with it! nolan is more amused now by humans/the world in general that it's not fun to just scare people. so i'm sure he had a bit of his sarcasm intact even way back in the day. if she/her sisters were romanovs he would be fascinated and probably tell stories to this day about having a drink (of blood) with a romanov. to which zero people probably believe.