A neighbor who was 70 just got mashed flat(crushed) when a large round bale of hay rolled off the truck he was loading. Bet that really hurt! Those things weigh 1800 to 2400 pounds.
Working at Lowes, I sometimes come home rather sore, especially when I spent the day wrestling with tire shop size air compressors or the large size drill presses and bandsaws. But then, it's not so bad, before I retired from it, designing software made my head ache.