Slightly off topic, but about 15 years ago I was at a conference, and the speaker took questions from the audience at the end of his presentation. "Yes, the lady over there" he said, inviting the first person to ask a question. To which he got a huge rant from the woman, tearing him off a strip for referring to her as a "lady." What was he supposed to say? "The woman over there" somehow sounds too blunt, but why? We teach our children that "lady" is the polite form of reference - we say "give the money to the lady" if we let them do the paying in a shop, for example.
Since then, Little Britain has added overtones to the word 
An added layer in this scenario, perhaps?