Is your mate or partner a social vampire? Here’s how to escape energy suckers this Xmas – and find out if you’re one too

THINK of vampires, and you’ll probably picture cloaked figures with blood dripping from razor-sharp fangs.  But unlike our deathly pale friends mentioned above, social vampires are very real – and they walk among us. The odds are, there’s at least one lurking in your office, your friendship group, your dating roster… Or, you could even…