Speaking of ancient history, Bugs Bunny once cost me severely on a history test. The cause? A cartoon in which "Yankee" Bugs stumbles upon a Confederate who thought the Civil War was still going on. A stunned Bugs says "Why, the Civil War ended almost 90 years ago!"
The cartoon was made in 1950. But it had this timeless quality, you see...
Not only did I use this information on a history test, I went to the mat for it. Arguments ensued; evidence was marshaled; parents were called in. Humiliated parents.
Never do anything half-assed, especially when wrong, I say! I plunged in whole-assed, thank you.