The Big Bang Theory, Season 2

Raj:
Gentlemen, I put it to you: the worst tapioca pudding is better than the best pudding of any other flavor.

Sheldon:
First off, that's axiomatically wrong, because the best pudding is chocolate. Secondly, the organic structure of tapioca makes it a jiggling bowl of potential death. It is extracted from the plant -

Howard:
[deliberately interrupting him] Hey, I'm thinking of growing a mustache.

Leonard:
[playing along] Aaah... No kidding. Fu Manchu? A Handlebar? Pencil?

Sheldon:
[desperately] It's extracted from the plant -

Howard:
I'm not sure yet. You know. George Clooney has one.

Raj:
Really? I once saw him at Ralph's. He was buying tequila.

Howard:
Oh. You'd think a guy like that would have some kind of booze lackey.

[They look at Sheldon, who is crinkling his lips in frustration]

Leonard:
[smiling] Alright. This is cruel. We'd better let him finish before his head explodes.

Howard:
Alright, Sheldon, why is tapioca - ?

Sheldon:
[very quickly, in a rambling manner] Tapioca is extracted from the root of the plant Manihot Esculenta. Due to a high concentration of cyanide, it is poisonous in its raw form and lethal if prepared improperly! [takes a drink of water]

Raj:
Feel better now?

Sheldon:
[continuing] It is also indigenous to Brazil, as is the cocoa bean from which we get chocolate, the best pudding, and you [Leonard] promised you wouldn't do that anymore!