Driver switched lanes in front of me on EB 96 in Detroit, with about a foot to spare. Honked horn, didn't seem to notice or care that he'd shown poor judgment. Zipped across other lanes and got off around I-94. tempted to call cops on him, but he'd still be an idiot. His car already had substantial rear-end damage so I'm guessing he's made other bad decisions. Dumb child.