I was in the left turn lane, waiting to turn at a lighted intersection... The light turns yellow while I'm in the middle of the intersection -- steady flow of oncoming traffic -- and a vehicle in the oncoming lane runs the light, forcing me to run the light... But, what am I supposed to do? Wait in the middle of the intersection? Go in reverse with 30 others cars on my rear?
So, I turn, and there's a broad behind me, blaring her horn and screaming. So I calmly stick my arm out of the window and issue the middle-finger... Forever.
Her initial reaction to finger was hilarious: Upping her hostility, slamming her own middle-finger into the inside of her windshield, yelling and blasting the horn with her free hand.
Her hostility subsided when she realized that my middle-finger had been erect for almost a minute... And I imagine that I absolutely blew her mind when I just left it there for the 20+ minutes she had to follow me on the 55 mph single-lane highway.
It was a social experiment, really.