I dunno smackie, I agree with your post #10 but this sounds just downright arrogant tbh. I would be very put off if a guy said something like that to me, especially since if I did not want to go out with him it would put me in a very awkward position (it would be tougher to let him know that I'm not interested). On the other hand, if I were interested in him, there would be no need to be so rude - this kind of arrogance would actually make me less interested.
I think you should go with your original plan, Mandophon (the one you mention in post #13).