--Depends on the scope of possible injury I guess. I *never*
get hands near the planer or the tablesaw blades for instance, but the
grinder's glass shield had to go because it really does get in the way.
Actually I got rid of the grinding wheel and opted for a belt grinder,
which I consider safer. As for lathe and mill prudence is the best
guide; i.e. long sleeves rolled up, dust collector on when fumes are
present, etc.

--
"Steamboat Ed" Haas : Whatever happened
Hacking the Trailing Edge! : to Tom Nelson?
http://www.nmpproducts.com/intro.htm
---Decks a-wash in a sea of words---