Factual error: When Dracula is about to bite the neck of his female assistant you can plainly see him in her vanity mirror and as all good horror fans know, you can't see a vampire in a mirror, especially Dracula.
Factual error: In no place on Earth does the full moon occur five times in a row, as it is in the movie.
Answer: He's a rather simple-minded guy. He was scared and had become so overly-immersed in pretending to be hypnotized that it took time for him to act normally. Also, it's a movie. They're going for comic effect.
raywest ★