A blogger author recently discussed questions from non-writers and suggested giving serious answers. Lotsa luck there. My answers may not be serious but they are honest. Sort of.
And from my sister: When are you going to write a really serious novel?
(Sis, you've known me all my life and when was I ever serious?)
Or: I gave you an idea. Why didn't you turn it into a novel?
(Sis, you have to give me more than three sentences.)
Or: Where do you get your ideas?
(Not from my many sisters, obviously.)