Owens: What color is mimosa?
Haden: I believe it's light yellow.
Owens: O.K., that's right. By the way, who discovered oxygen?
Haden: A man named Boyd.
Owens: Very good, Pat. Now listen closely. Which of the following is not an amino acid: leucine, valine, choline, lysine, alanine?
Haden: Just a moment, Gary. You said not an amino acid?
Owens: Yes, not.
Haden: That would be choline.
Owens: Fantastic. Incidentally, do you know the exact date of the first St. Patrick's Day Parade held in New York?
Haden: Let me take a stab, Gary. I believe it was March 17, 1762.