A little background about me. When I was 10, my parents were taking my brother and me to an event at The Pyramid in Memphis, TN. Somewhere around Memphis on the interstate a tow truck traveling at interstate speed threw a wheel (tire and rim assembly), which became a 200lb wrecking ball barreling down the interstate. First, it hit a car in the rear traveling in the same direction, which caused it to bounce up and over the cement divider and into oncoming traffic. It then bounced completely over a car in front of our van, which is when my dad finally noticed it. It was about 30 ft in the air and heading right at our van. With traffic on both sides, all my dad could do was hit the brakes, but he couldn't avoid it. The tire struck our van right beneath the passenger side windshield and then bounced straight into our 3 week old GMC Safari minivan striking my mom. Even after striking us, the wheel assembly continued rolling down the interstate along the divider until it came to a stop another 500 or so yards away. First responders were amazed to find my mom alive in the carnage. Blood was everywhere!
My mom suffered a shattered wrist, ulna, and radius in her right arm as well as deep cuts to her face, neck, and arm. She underwent several surgeries and a couple years of rehab to repair her arm and wrist, but never regained full movement. Despite plastic surgery, her face too was permanently scarred.
Since the wrecker lost a wheel, the truck had to stop, as he couldn't go anywhere. Police cited him and the company he worked for. Investigation found improper maintenance for the truck and knowingly operating it on a bad axle caused the wheel assembly to sheer off the axle. My parents sued the company, but only got enough to pay for some of the doctor bills we had to pay.
Safety 1st. Always.