KGB
Example:
Dwight: Knock, knock.
Michael: Who's there?
Dwight: KGB.
Michael: KGB - (Dwight slaps Michael)
Dwight: (in Russian accent) We will ask the questions!
Dwight: Knock, knock.
Michael: Who's there?
Dwight: KGB.
Michael: KGB - (Dwight slaps Michael)
Dwight: (in Russian accent) We will ask the questions!