While I am not convinced of its authenticity, this video shows many mistakes made on both party's sides. It features 2 folks in a truck following/harassing a BMW driven by a man and his gf/wife. The folks in the truck video tape them and provide colorful commentary (NSFW LANGUAGE) along the way. You can't beat the karma levels but all the same, I did not attempt to bring this up in a strategy forum. It is more enjoyment to see some come uppin's than anything.
Rok