Twice. Wrecked my car into a guard rail durring an ice storm and the other was when I hit a deer. I felt kinda dumb calling 911 to report the deer but I guess its what you gotta do since its dispatch as well.
Three times. Once when some assbag decided to pass a line of cars on M-115 near Cadillac and didn't get over when opposing traffic came up, running them off the road. The second time I followed a shitty 1980s minivan onto the highway from an onramp, the driver was clearly on something, followed him for 15 miles and flashed my lights at a cop we passed in the median 10 minutes after I called, and after the cop failed to pull out and get him, he crashed into the back of a semi that had stopped for a traffic jam. Then I called 911 again and told them the car I just called on crashed. He had a poor little kid in there. Fuckin POS dad.