Mental Health, in continuation from the above:
There is only one of these guys in the whole world. His super power is to appear at social gatherings in moments which least befit his awkward self-insertion into intimate, lively, and otherwise worthwhile conversations. He used to be human, and let's face it, he was pretty obnoxious even then. He wears many faces, tries to talk about many asinine subjects, but has one and only one relentless purpose.