NEVER,NEVER ...
wear gloves, or jewellery, not even a watch, when using ANY form of rotating equipment...let common sense prevail,
George (Tech.IOSH).
I've taken worse injuries from the safety equipment on my mill, than I ever took from the mill itself... I'd only put the guards on to stop wax swarf from spreading all over the workshop (you can really lay on fast cuts with wax - a 3" mill running at 2600rpm taking a 1/2" cut doesn't half throw some swarf about), gashed my arm on them twice reaching up to shut the mill off. So I took the buggers off and put them on the floor, I've tripped over them several times now, think they'll be going back on eBay, damn dangerous if you ask me.
My watch saved me from a broken wrist one time when I forgot to remove the the spanner from the mill drawbar. It's amazing how fast those things accelerate. The watch never did work again.
I'm not saying wearing watches, jewelry, long hair, floppy sleeves, etc. is advisable, most of the time it is not, but I cannot equate the blanket "never ever ever wear this stuff" to "common sense", because it just plain isn't. In fact, it's the opposite of common sense, it's ignoring common sense & just blindly taking precautions against risks that just aren't there.
The only time I ever came close to getting sucked into the lathe was when wearing lab coat. Not the sleeves, it was the hem that got caught around the screwcutting/apron power shaft; fortunately, I felt it starting to tug, and was able to just pull back away from it without indicent. Could have easily lost a leg there.... (not).