What have been the worst (serious or humorous) handyman or handywoman
accidents that you've experienced so far (or someone you know, or saw
it happen to, got to experience) and please elaborate on what
unfortunately went wrong.

#1
Neighbor was painting slipped off the ladder, fell about 10 feet, hit his
hips on a clothes dryer bounced off then hit almost head first onto a
concrete floor. He's back on his feet today but it took a while.

#2
Uncle was cutting plywood with a circular saw using his hand to support the
plywood. Lost his pinky.

#3
Brother-in-law using radial arm saw to cut a too short board. Took off tip
of thumb.
3a Same BiL was repairing barn roof. Using chainsaw to trim overhang. .
..while standing with one foot on roof, one foot on over hang and chainsaw
cutting between his legs. Think 3 Stooges. Nothing but bruised pride.