<i>I&#x27;ve often used a similar technique driving, but it has backfired. When someone gets angry, flips me off, etc. I will usually wave exuberantly, with a huge smile. Unfortunately making an angry driver angrier gets scary quick.</i><p>Once in a while, I catch myself making some kind of mistake on the road that angers another driver.<p>I really wish there was some kind of international, &quot;Sorry, my bad!&quot; gesture.  If there is one, I&#x27;m unaware of what it is.