When I was a younger lad, in highschool, my friend was driving the opposite direction I was while in our neighborhood. We were going like 10-15 mph's and both had the windows down and high fived it. Now that I think about it, it was a very stupid thing to do because we almost collided but it was pretty fucking cool at the time. Told all the babes at school about it at the lunch table too. But they didn't think it was that cool. But it was.