I once met a man in Sri Lanka who called himself a yaka (devil) hunter?

may be it sounds nuts even to me though im a Sri Lankan..but, there's a truth..though u believe in it or not.! the thing is no one who thinks they are knowledgeable does not believe in supernatural.. haven't u heard of people who had encounters with ghosts aah! that's right ..that man can stop that encounters..they ve practised it..which is so dangerous!