Everything that has been said already with some additions:Place a sign on your shop door with the following:
"If you value your life as much as I value what is in this shop, you won't xxxx with it."
Do not work in the dark.
Do not drink paint or lacquer thinner.
Use material at least the length/width of the desired result.
Install BS blades with the teeth facing front.
Do not use a drill bit larger than the desired hole.
When using spray cans make sure little hole is facing away from you.
Do not smoke while wearing a face shield.
Wear shop apron on front.