So...anyone ever try to parallel park with someone standing on the curb watching you? Not to guide you in, just standing there to see if you can do it. Even if you are the best damn parallel parker in the entire world, this is the time when you'll scrape the curb or cut it too short, and you'll have to start over. Maybe twice. The chances of this happening are especially high if you are a woman and the person watching you is a man you don't know very well.