The other day, I was driving on the interstate when some college age girl was driving like a complete sh*t. I could see her coming up behind me weaving in and out of traffic. I had my CC set and moved to the left lane to pass a truck, when she came flying up my right side and at the last minute, realized she didn't have enough room to get in front of me to pass. I could see her slamming her fists into her steering wheel and screaming something, couldn't hear her because the windows were up. She made a few gestures out of her window, presumeably at me. I kept on with the cruise control, and passed her. I had my sunglasses on so she couldn't see my eyes, but as I was passing by, I turned my head as though I was staring her down, and had my left arm draped across the steering wheel. In reality, I was alternating between looking at the road, and staring her down, but she couldn't tell with my sunglasses on. And I'm sure with my shaved head, I was pretty intimidating looking to some 19 year old girl.
She got REAL calm right after that and I didn't see her driving like a retard afterward, though it helped that traffic was pretty clear for a while. My girlfriend, in the passenger seat, thought it was hilarious. I think she was laughing about it for about 3 miles. It was the best response I have ever gotten from anything I have ever said or done regarding road rage. And I didn't even have to say a word.