Big Bang Theory Quote
Amy: (as they walk down the stairs) So, Sheldon, there's something I've been wanting to talk about, but I know it's kind of a touchy subject.
Leonard: Way to narrow it down to everything.
Sheldon: What is it?
Amy: Well, your birthday's coming up, and you've never let us celebrate it, and I was hoping maybe this year we could.
Sheldon: Oh, I suppose that's a discussion we could have.
(he runs back upstairs)
Amy: OK, great. I mean, it doesn't have to be a big party or anything. I just...
(she notices he isn't there)
Amy: Where'd he go?
Penny: Whoa, wait a minute; you mention his birthday and he vanishes?
Leonard: Well, where's that information been this whole time?
Quote from S09E17 - The Celebration Experimentation