Yes, I'm one...not really. I do like drinking blood on occasion, but just for recreational purposes! Seriously, there are tons of people who like to pretend to be vampires, bloodletting with consenting partners, wearing false teeth, sleeping in coffins and so on. There are others who claim they really are vampires and do stuff like drinking animal's blood. An internet search would probably come up with some interesting sites on the subject, but I'm behind a firewall and can never see stuff like that (unfortunately).