Back in the early 70's, I was standing in the bathroom shaving when I heard a not thunder rumbling.
I opened the back door and there was an upside down flatbed trailer sitting on top of an upside down back hoe. A 1/2 ton Ford pick up, right side up with the cab looking like the Jolly Green Giant had hammered it!
At the wreck, nobody was hurt other than some dirty underwear.

When I walked by the trailer, the ball was still in the grips of the Bulldog hitch. The bolt for the ball had been sheared off!