Professor Proton: Hello, Sheldon.
Sheldon: Hello, Arthur. Now, I'm confused, usually when you appear to me in my dreams, we're on the planet Dagobah.
Professor Proton: This is Dagobah.
Sheldon: I didn't know that Dagobah had delicatessens.
Professor Proton: Not good ones. Whatever you do, don't order the Reuben.