It's a good thing? [ What's so good about not picking out a vampire?? ]

If you're going to talk about vampires and mingle with them, you ought to be able to determine who is one and who isn't. For example, if all of this--[ Motioning to the massacre around them. ]--was my doing, within a few moments all these dead bodies would come back to life.

Then you'd be the only non-vampiric presence here.