[tsaksa]

Just this week I was using a cut-off wheel when it caught in a groove and broke. I had this happen before, and usually the parts of the wheel fly off harmlessly away from me because I try to always stay as much as I can out of the plane of rotation. This time one of the pieces hit something and bounced right into my face. It scared me, but I was fine. It bounced rather hard off my safety glasses leaving a clear enough mark to suggest the damage it might have caused if I had not been wearing them. I promptly showed them to the students and reinforced the need to be diligent about always wearing them.

Bottom line Always wear your safety glasses, and constantly bug the students to do it as well until it becomes a habit.