My response has ALWAYS been the same: "For $XX,000, It can be yours, and you can do whatever you want to it. Until then, it's mine, and it'll be however I want it." Yes, I'm an a$$%*#!, but it usually gets them to move along before they waste much of my time. And I'm only a jerk with the experts; my favorite thing at car shows is to put as many people as possible in the driver's seat to get a picture, especially kids. My '72 Mini Cooper draws kids like a magnet...