If you haven't yet had the chance to walk on fire: physically, that is: that doesn't mean you haven't done it in a hundred other ways, symbolically speaking. So now, when the person you adore asks for something they think is so above and beyond the call of duty that even you might not be able to pull it off, you'll be just tickled to announce that doing something like this for someone like them is nothing. Nothing at all. Not for someone like you, anyway.