When I was really young playing Final Fantasy IV I didn't know the word "Behemoth" and I thought it was a play on Bahamut so I would always call Behemoths "Buh-hau-muths".

In fact, even when I learned what behemoth actually meant in middle school, I still continued to refer to behemoths on Final Fantasy with my old pronounciation. I started getting heat about it from my friends, so due to peer pressure, I not use the correct pronounciation in all circumstances.