Bill, this is an absolutely GREAT post.  You have given words and examples to common experiences most people have had, or perpetrated (I confess!).

A really good source of information about Energy Vampires is Dr. Judith Orloff.  It is a bit more from a psychological or metaphysical standpoint, but she goes into detail in her bestseller: "Emotional Freedom: Liberate Yourself From Negative Emotions and Transform Your Life.”

There are also several relevant articles on her website.  Here's one: http://www.drjudithorloff.com/_blog/Dr_Judith_Orloff's_Blog/post/Who's_the_Emotional_Vampire_in_Your_Life

Thank you again, Bill, for calling this out.