Rigby has not only lied to Mordecai about the video to be watching, but also he lied to Benson. While they're on an errand to get his sandwich, Mordecai and Rigby decided to have contest on who could lie better.
* CryingWolf: Played straight when Rigby tries to tell Benson of the entire event which he thinks it's a lie. Inverted where Mordecai tells him a lie about the sandwich which is believed.
* UngratefulBastard: The astronauts kicked out Mordecai and Rigby after they have saved their asses from a meltdown. Even though the two lied about being astronauts, that was a bit much.