I had a push mower roll out of the back of my flatbed once, but the worst accident-waiting-to-happen I have ever seen was not my doings...
My wife was given a 78 Chev 1 ton truck and an 18 foot deck boat by an elderly couple last month. Truck don't run, boat has not been used in years. Also, located two hundred miles away. Well, elderly couple arranged to have friend at distant location tow them to our place. When he arrived, and made the turn into our drive the 1 ton jumped off the tow dolly and rode up over the tow dolly wheel. Seems the fellow had strapped the bumper of the truck to the hitch bar of the dolly, but never put the straps over the front wheels as they sat on the dolly platforms. He had it rigged where it could not come off backwards, but there was nothing to prevent the whole thing from going forward except the lip on the front of the wheel platforms. Did I mention that the deckboat was attached to the towed one-ton? I shudder to think of the mess if he had needed to make a sudden stop at highway speed. I asked him about the tie downs and he said they were in the back of his truck, he didn't know what they were for. Had to lift the front of the one ton with FEL to drive the tow dolly out from under it.......I am glad I had forbade the wife to go down there by herself to bring these new yard decorations home!! She and her friend had come back three days prior with a 12 KW genset on the back of her freinds flat bed, it was tied to the headache rack with a three foot piece of nylon ski rope /forums/images/graemlins/shocked.gifChet