Check out this Coast to Coast discussion with Jonathan Zap about energetic mind parasites that manipulate/control us. It's very fascinating and explains a lot. I've always wondered about this, so it's good that this discussion brings it out into the open. This explains why some places and people give you bad or weird vibes and why some people and places are energy vampires that drain you. Some people do seem to attract certain types of energy parasites or entities around them which affect others.
Article about energetic mind parasites:
http://www.bibliotecapleyades.net/cienc ... real25.htm