Quote from The Agreement Dissection

Quote from The Agreement Dissection (Season 4, Episode 21)

Sheldon: Leonard, are you in the shower?
Leonard: I can't hear you, I'm in the shower.
Sheldon: I asked if you were in the shower, but that's moot now.
Leonard: What?
Sheldon: Moot. Rendered unimportant by recent events.
Leonard: I can't hear you, I'm in the shower.
Sheldon: (Entering bathroom) I have to skip the chitchat. Emergency!
Leonard: What kind of an emergency?
Sheldon: Mathematical. 32 ounce banana smoothie, 16 ounce bladder.