Mrs. Bennet: I consider dancing to be the first refinement of polished society. Don't you agree, Mr. Darcy?
Mr. Darcy: No, every savage can dance. Why, I imagine that even zombies can do it to some degree of success.
Mr. Darcy: A newly infected zombie is almost impossible to detect. Until they've ingested their first human brains, at which point the transformation accelerates with every subsequent kill.