Good stuff!
The truck driver probably should have made a right turn coming out of that driveway. Truck drivers should be more aware of blind curves, and that driver made a mistake.
That cavalier is just plain dumb. Do you have any friends in your local police dept? figure out that cavaliers lic plate and then have your buddies find their home address. Make a copy of the video and send it to them. Politely point out their error. I know if I got a video like that, I would definetly feel guilt and would be much more aware of my driving habits. But I know there are some real mentally challenged people out there and this wouldn't change them a bit.
(I have a friend who is a PD officer and whenever he is driving around and gets cut off or something, he remembers the plate # and when he gets into the office, he looks up the guys information. Then he give them a polite phone call and explained the situation (politely). 9 times out of 10, the people are very understanding and appologetic and vow to improve their habits.)
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There are three kinds of people in the world. Those who can count; and those who can't.