So, while I was out of town this weekend, my father-in-law had a mishap while mowing his lawn. He stepped in a gopher hole, tripped, and rolled down the rather steep hillside in their front yard.
He broke 3 ribs.
He's also 70 years old, has a pacemaker, and is on blood thinners.
I think it may be time my in-laws start hiring someone local to mow their lawn from now on.
ETA: Oh, yeah, he has rheumatoid arthritis, too! SERIOUSLY STOP DOING THIS.