John Deere 160 (1988), Arctic Cat 400 ATV (2006), Kubota BX23S (2018),Jacobsen Super Chief 1450 (1969)
Accidents can happen to anybody. Sometimes it's what you do / don't do; or perhaps what someone else does / doesn't do. Numerous reasons for farming accidents, and caution and experience won't cover all of it either. Sometimes shifting dirt, water, even wind will create havoc in a routine setting, animals are unpredictable etc, so a lot of it is citcumstances. Momentary distractions are far more likely to be a cause, than even limited brain power. And then there are the regular operators who think on the fly, or take a risk. Hopefully fatalities are avoided, and we can later talk about it, learn, and laugh.
I have met all kinds of people at every level of education, experience and smart. Some of them are the Smartest Dumb People, others are the Dumbest Smart People.