On a very serious note...
A member on another forum recently told the story of his father in law I think it was (or uncle, something like that, whatever...) who they'd found hadn't come home one night after going fix something on his property.
They found him, I think he was fixing a well or something but anyway a sheet of metal slid down near cutting off both his hands and pinning them to the structure. A few fingers lost on one hand and the other seriously damaged too.
Couldn't get out, couldn't call for help, nothing....
Be careful by yourself