Haha I worked with a guy who thought Hitler was responsible for World War 1 and Gallipolli and The Kokoda Track were the same place (for those unfamiliar with Australian history, the two most influential events on our national identity in war time, one in world war one, the other in two).
Anyway, quitting paying him out, he tried to recommend Static X to me when I said I like heavy music, so I recommended Mayhem and gave him the history in 10 minutes of the band. He now makes a cross at me whenever he sees me and asks me stupid questions about satanism (which he seems to get easily confused with being a muslim..)