Oldest boy discovered Monty Python in middle school. You just haven't lived until you've turned the corner onto your block and seen your five-year-old son, put up to it by said older brother, wandering around the block, pulling a bright red Radio Flyer and yelling: "Bring out your dead, bring out your dead!" The wagon was filled with my daughter's dolls!
The 5 year old is now 16. Whenever I grill him about school, his standard response is: "Nobody expects the Spanish Inquisition!"