We had a dead 40-foot pine on our property. It had died a couple years ago, and it was already leaning slightly. I wanted it down, and wondered if I couldn't help it fall over. I eased up to it on our Kubota 5140, raised the bucket and pushed. It gave a little, so I eased back, lowered the bucket a little, and pushed again. Way up above, the top of the tree broke off backwards and brought down branches with it. I heard it break, but couldn't see through the canopy, and I had no exit, anyway. I hung on. Little branches rained down, and then the top hit. One end landed on the canopy, cracking the fiberglass, bending the front canopy bar, and bending the whole canopy down. The other end put a major crunch in the hood.
I shut the tractor off and sat there for a bit, pondering the stupidity of my actions, and appreciating that I was unhurt.
That was well up the list of the dumbest moves I've made in my life. It could have gone far worse, especially if we hadn't had the canopy.
I'm a lot wiser as I use the tractor, now, and I suspect I'm somewhat easier on it, as well. Ain't skeered, but I'm a whole lot more attentive to possible consequences. I guess I hadn't realized that (1) even a dead tree can kill me, and (2) it's my job to be smarter than the dead tree.