Anyone who needs to prepare for an appearance on Jeopardy! need only live with teenage children.  Invariably they find it much more convenient to ask you questions than to actually do research so on any given night you’re bombarded with questions like:

• "You know that guy Stalin?  What was his first name?"
• "When did the Renaissance start?"
• "Who said ‘Et tu Brute?’ in Romeo and Juliet?"
• "Is pi, as in the pi you use in math but not the kind you eat, spelled with or without an ‘e’?"
• "Was World War II after the Civil War?"

I’m telling you, they keep you on your toes.