4. "Good Night. And If There's An Apocalypse, Good Luck"
"Good Night. And If There's An Apocalypse, Good Luck" Dr. Elizabeth Plimpton (or Dr. Slut Bunny according to Penny), world famous cosmological physicist comes to visit Sheldon. When showing her his room where she'll be staying, he doesn't forget to grab his backup emergency supply kit in case of an apocalypse. Everyone should have one.
