Several people have given me the same solution for when stupid people ask me who my characters are based on (nobody) and are amazed that I have "done all that stuff" (the stuff I made up for my books). Blogger buddy 'Suki' finally gave me wording that sunk in:
"I have been watching you from afar for two years, so I wrote a book series about my fantasies with you. Glad you finally asked."
One of her friends added, "I have hundreds of photos of you lining my condo walls."
I like that second line as a follow-up if the light never comes on.
It happened yet again and it was another of those published authors who does not seem to have a real imagination. She had to move over several seats at a bar just to pester me about what I was writing (Suki IV) and insist that Suki was a real person instead of a marketing-driven character.