Big Bang Theory Quote
Sheldon: The only kind of engineer I'm interested in blows a train whistle. Ooh, that gives me an idea for a new road game. What kind of whistle am I?
Leonard: Train.
Sheldon: Actually, it was going to be a kea kettle, but it was on a train, so I'll give it to you.
Quote from S11E05 - The Collaboration Contamination