I was once able to almost make cars jump out of my way, carve through traffic, and basically have a happy, hassle-free drive.
At first I thought I was just having a lucky day on the roads, but the reason behind such a pleasant trip struck me a bit later on. I'd borrowed a car for the day - a big old dented rusty Holden Kingswood wagon,[link|http://en.wikipedia.org/wiki/Image:Holden_Kingswood_%28HX_series%2C_1976%29.jpg|not too dissimilar to this sedan].

So I was basically sending out these "Get out of my way, it's obvious a few more dents on my car won't make a difference" vibes - and all the nice shiny cars out there happily complied, be they peasants or otherwise.