Kendall Jenner, James Franco face off in 'Tonight Show' Pup Quiz

Anyone who's ever had a light-colored dog can tell you: Never wear black around them. (Or at least carry a very big lint roller with you at all times.)

But apparently, nobody tipped off Kendall Jenner, who swung by The Tonight Show  to play Pup Quiz on Friday evening between walking at New York Fashion Week shows. 

Good thing she was bad at trivia; the only time she got puppies was when opponent James Franco answered one incorrectly.

It did teach us something interesting, though: Cows produce more milk while listening to R.E.M.'s Everybody Hurts than Beyoncé's Single Ladies or Michael Jackson's Thriller.

Later, Fallon had Jenner read a letter she wrote to herself when she was 14, in which she foretold her modeling career. ("I still have the same handwriting, by the way," she said. I have full-on 10-year-old-boy writing.")