A childhood belief about church

I grew up in a religious family, with a somewhat narrow view of the world. Everyone was either a Protestant or a Catholic (those were the only options). Unfortunately, in elementary school I confused the word "Protestant" with "Prostitute" and therefore believed that if you weren't a Catholic, you were, by default, a Prostitute. I had no idea what a prostitute was, but quickly learned when I proclaimed to a group of friends that my family was prostitutes. To this day I am hoping everyone has forgotten what I said.