I have a rather vivid memory of purchasing my first "Jaw Harp". This was back in the 40's and I was around 12 years old at the time. Anyway, I walked into a music store and asked the proprietor it he had any Jew's Harps. I promptly received a five to ten minute lecture about the proper name for this instrument (actually it felt like an hour at the time). He told me that the Jewish people were quite offended when people refer to it as a "Jew's Harp".