Quote from Denise in the episode Spoiler: Corn is Delicious
Stuart: Look. Even if I wanted to save the universe, I don't have the device anymore. Stuart Prime: So order another one! Stuart: How can there be another one? Stuart Prime: How can this conversation be happening? Stuart: [sighs] You-- You're not listening to me. I'm done with the Leonard/Sheldon thingy and the universe hopping and you! Mostly you. [As Stuart walks away, Stuart Prime starts to walk after him] Denise: Don't. Let me talk to you.