That was an experiment to determine at what concentration does food start tasting moth-y.

Sheldon

And to think! I was ready to waste the last of my good hemorrhoid cream on you!

Sheldon

Leonard: You put moths in my food!?
Sheldon: For science.

You're far too short to be Darth Vader. You're much more likely to be a turncoat Ewok.

Sheldon

I just wanna put it out there in case I inadvertently squirt any pheromones in your direction.

Wolowitz

This is the worst cobbler I've ever eaten. It tastes like it's made of actual ground-up shoemaker.

Wolowitz

I think, "How could you? She's my sister!" takes preference over a five year old pinkie swear.

Raj

Leonard: You know what happens when you yawn in public...
Sheldon: Everyone will see my oddly shaped uvela.

Raj: Hands off my sister.
Sheldon: Why would I touch her? She's covered in airplane germs.

The Big Bang Theory Season 4 Episode 6 Quotes

Leonard: You know what happens when you yawn in public...
Sheldon: Everyone will see my oddly shaped uvela.

Raj: Hands off my sister.
Sheldon: Why would I touch her? She's covered in airplane germs.