I just wrote a bit on my blog about turning safely for the Wood Whisperer Network and the 2nd Annual Woodworking Safety Week which is the week of May 4th. Thought I'd copy the basic jist of it here too...can't remember where I found this info, but it holds true for sure....
S -Speed compatible with the size of the wood to be turned?
A -Aside - Stand out of the “Firing Line”
F -Fastened - Are all locking handles secured?
E -Eye Protection - Safety Glasses and Face Shield
R -ROTATE -The wood freehand to spin freely
PS if you want to read the whole thing just click on my blog link below.