<human>: I was on the left lane of the highway (US - fastest lane) and was doing 10 over. I started getting tailed by this Kia minivan (no joke). I would have yielded but there was no room to the right. I finally moved over when I got the chance (a good 1.5 miles after he started tailing me). When the car passed I held out the good ol' finger by my window. 

The car passed me, and swung into my lane and braked hard. We were both doing 75, so I swerved to the left to avoid him and he moved back into the left to block me again. Everyone behind me was screeching hard and honking but this guy took his time to flip me off SEVERAL times before speeding off. 

I'm not offended but am rather surprised he would go to such extreme lengths on getting flipped off for what was his aggression. Perhaps its a yank thing (I'm not from here), perhaps its just him. Thoughts?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Flipped a guy off and he tried to cause a pile up on the highway. Would you do something drastic too? Would something else make you something that extreme?