I have read Robert Bruce’s new Psychic Self Defense Guidebook and he is an excellent practitioner in understanding psychic self defense. He also talks about Emotional Vampires on his web site.
“…When another person cuts you off, slights you, snubs you, gets one over on you, or betrays you in some way, it makes you feel bad. You feel it like a low blow. You can actually feel your energy leave you when this happens. You suddenly feed ‘deflated’. When this happens, someone has stolen a piece of your vital energy. If this happens often, pretty soon you’ll be exhausted and disempowered for no discernable reason.
These people are also of the same type that always bottlenecks your progress. They drive you crazy with irrational arguments, and you just know they are insulting you behind your back… simply because they’re jealous. These are the Emotional Vampires of our world.”