Small spoiler warning: tonight’s Pushing Daisies
There’s a scene where someone needs help with a crossword. They need a word for “kinship”, and says “I have to warn you, there’s a Q involved.”
We then see the crossword puzzle, and after filling in the right answer, the only complete words she’s done are all down words. She explains that she only does the down clues.
So… how did she know there was a Q?