Catholic school

One day Sister Mary Teresa was asking her 1st grade class at St. Peter's Catholic school what they wanted to be when they grow up.
Little John wanted to be a fireman; Susie wants to be a nurse. Then she came to Ashley, Ashley said, I want to be a prostitute! Sister Mary said WHAT!? Again she said I would like to be a prostitute.
Sister Mary said Oh thank heavens I thought you said you wanted to be a Protestant!!!!!!