Natural Intelligence?

There used to be this joke about a chap who went out for data collection. He goes into this house and asks the lady, "Are you married?" The lady says, "No!" He goes on to the next question in his list and asks, "How many children?" And gets roundly abused for insulting her. Assuming that he had got the order of questions wrong, he goes to the next house and asks the lady, 'How many children?" She