Sheldon is on the piano, singing “To Life” from Fiddler on the Roof enthusiastically.
Leonard: I don’t believe it. What’s gotten into him?
Penny: Oh, maybe a couple of virgin Cuba Libres that turned out to be kind of slutty.
Leonard: You didn’t.
Penny: Hey, you do your experiments, I do mine.
Sheldon : You’re right. Monte’s gone. We’ll bury him in the morning. Simple ceremony; I’ll speak. Leonard, you’ll play the cello.
Penny : Sheldon, honey, aren’t you getting a little carried away? I mean, it’s just a toy robot.
Sheldon : Just a toy robot? [Runs off in tears.]
Penny: Do you understand how creepy this is?
Leonard: Oh, yes, we discussed it at length last night.
Penny: In my apartment, while I was sleeping.
Sheldon: And snoring. And that’s probably just a sinus infection, but it could be sleep apnoea, you might want to see an otolaryngologist. It’s a throat doctor.
Penny: And what kind of doctor removes shoes from asses?
Sheldon: Depending on the depth, that’s either a proctologist or a general surgeon.
(Leonard holds up a sign reading “Sarcasm”)
Sheldon: Ooooh!