Friend: "I pull down about a hundred sacks of Galleons a year! I'm a dragon killer for the Committee for the Disposal of Dangerous Creatures."
Wizard: "No, you're not! You're a dishwasher at the Leaky Cauldron … but I'm a Vampire Hunter, I've killed about ninety so far - "
— A group of wizards fighting over the affections of a group of Veelas.[src]

This individual was a wizard who attended the 1994 Quidditch World Cup between Bulgaria and Ireland. He claimed that he was a Vampire Hunter in an attempt to impress a group of Veela, after refuting the claims of his friend who said he was a dragon killer. It is extremely unlikely that the "vampire hunter"'s claim was true given that killing vampires is illegal under the Guidelines for the Treatment of Non-Wizard Part-Humans (paragraph twelve).