Aha! I thought Vincent Clortho sounded familiar. It's from one of my all time favorite movies - Ghostbusters. Louis, played by Rick Moranis, was possessed by the Keymaster Vinz Clortho. Here's a bit of the script from IMDB.

Louis: [Louis, as the possessed Keymaster Vinz Clortho, runs out of Central Park, scaring a married couple] I am the Keymaster! The Destructor is coming. Gozer the Traveler, the Destroyer.
[Louis pants and sniffs, then notices a horse carriage; horse neighs]
Louis: Gatekeeper.
[Walk over towards the horse]
Louis: I am Vinz, Vinz Clortho, Keymaster of Gozer. Volguus Zildrohar, Lord of the Sebouillia. Are you the Gatekeeper?
Coachman: Hey, he pulls the wagon, I made the deals. You want a ride?
[the possessed Louis growls at the coachman with his red-glowing eyes]
Louis: [to the horse] Wait for the sign. Then our prisoners will be released.
[Runs amok, scaring bystanders; yelling]
Louis: You will perish in flame, you and all your kind! Gatekeeper!
Coachman: What an asshole.

I am the keymaster! LOL

^NicoleBee
WHERE'S THE KEYMASTER?!?

also reminded me of this http://www.videosift.com/video/AMD-Duron-Vaporizes-after-severe-overclocking

God, I was waiting for him to say "Are you the gatekeeper? I am the keymaster."

And yes, to me it was obviously Fox's attempt to bait and provoke the crowd.