Forum:G Man theories

I know, I know, this has been discussed a lot before. However, I simply love reading all the G Man theories, even if they're a joke or simply ridiculous. :P So, what's your G Man theory?

I also have something else I want to discuss. SPOILER ALERT: At the end of Half Life 2: Episode 2, the advisors kill Eli Vance. Personally, I think the G Man could be, at least partially, responsible. Eli was killed before he had a chance to finish talking to Gordon about the G Man. However, I heard a theory that the G Man also meant to kill Gordon in this attack too and is now plotting against him. While I do doubt this, it certainly is interesting, and the G Man could very well plan to kill Gordon whenever he's finished with them. What do ya'll think about that?