Here's a course for all you scaredy-cats (or be initiated into Reiki for protection, ).
Combating Emotional Vampires
http://www.dailyom.com/cgi-bin/courses/courseoverview.cgi?cid=102
Combating Emotional Vampires
http://www.dailyom.com/cgi-bin/courses/courseoverview.cgi?cid=102