That's Scary, not real funny though.
A family friend of ours lost their son because of this on the way home from Lake Mead. A boat trailer lost its wheel and went right through his windshield killing him instantly, Kevin was only 19 years old. RIP Kevin
To this day, I always think about a tire coming at me from on going traffic. If you ever see one going down the road on its own, please nerf it to the side of the road, It could save someone's life.