Whoa, this is nuts, thanks to Patrick for sending:
“This was an interesting one… Happened at about 6:45pm on Saturday night right in front of Children’s Hospital on Michigan. Luckily a 25 mph zone where people generally follow the limit. The wheel came off of a small pickup truck and made a beeline across two lanes of traffic and right for my front bumper. I didn’t even see it until the last second. As you can see – it flew off my bumper like a ball off of a bat and ping-ponged between two more cars on the other side of the road.