When I originally saw the plane picture, the caption described the accident as a rookie pilot firing up another plane in the hangar without checking the chocks. When the plane started moving, he panicked and couldn't get it shut down, so it chewed it's way into the plane in the picture.
We had an incident similar to the first picture. We rented some off-road dump trucks (similar to the big dump truck above, but smaller) when we started construction at one site to move dirt around even when it was muddy. We were finishing a detention pond by putting down a layer of topsoil just before the grass sod. One of the trucks had been worked on several times for bad brakes, and seemed to be fixed. However, when the driver backed up to the already filled pond, the brakes failed again, and he kept right on going until all you could see was the cab and the top of the bed, which was still loaded with topsoil. Just for reference, the floor of the cab was 10-12 ft. off the ground. We pulled it out, and the rental company's mechanics managed to get it fired up and back at work again that afternoon.
