I was coming home from seeing Brian Posehn tonight. I was in the left lane on I71/75 south behind a Hyundai with one working taillight that couldn’t maintain a steady speed or stay centered in the lane. There were plenty of opportunities for the driver to move over to let me by but the driver didn’t for about 7 minutes. When the car finally moved over I looked over and saw some boy driving it. We made eye contact and out popped his left middle finger at me. My reaction was as follows: