When I was 16, some ass cut me off so I gave him the bird.
He then proceded to do this routine where he gassed it like he was going to pass me, then slammed his brakes and got behind me for about 1/2 a mile. We then ended up at a stoplight here he got out of his red pickup truck (what is it about people in red pickups?) and started yelling, cussing and banging on my door (which I had locked). That went on for about a minute or so until the light turned green.
I then proceeded to smile at him and drive off
God that was dumb on my part in retrospect.