Almost crashed into me had I not braked hard - on a highway doing 65! The driver was driving around 90mph on a 70mph road between exits 3 and 4 on I-75. They came in jumping over a lane and misjudged the distance, almost ramming into my left. There wasn’t even an exit they were trying to get to, so no reason for haste, seemed more like really bad judgment or loss of control. I had to risk braking, and was lucky enough that no one was behind me, which would have risked a crash from behind.