OK, reading these old posts and I have one to add...
I was bush hogging with an old ford loader that had a leak in the hydraulics so the loader would slowly drop, meaning you had to mow with it up.... Stupid act in it's own...
I was coming around a turn and looking back to make sure the bush hog was cleaning a tree when I hear a loud CRACK CRACK CRACK in front of me, I turned to look just in time to catch a tree branch in the face that had been bowed back by the loader and finally cleared it...
I woke up 2 hours later. I had cleared the bush hog by being swatted out of my seat by the branch. The tractor had continued on about 20 feet and stalled out on a tree, and my cap was still sitting in the seat!
How I didn't break my face I'll never know, but I was black and blue for some time.