The cost of a piece of metal in your eye.

I worked at a body-shop about 15 years ago and my eye started to hurt, just a bit. I started to rub it (mistake), 3 days later, my head was in a vice, at a specialists office, with the hottie Dr. Cathrine digging the metal out w/ an x-acto knife. Wore a eye patch for about 3 days. Excruciating pain, and I was miserable as hell.
Chemical burns in the eye really suck. Denatured alcohol blooped (for lack of a better term) out of the can when I set it down in a hurry, got in my eye. I thought I could ride it out. I was in the hospital in about 3 days (after i was convinced that it would not help to rip my own eye out).
Moral? Be Safe When Working!!!!!!! Weather it's on a 4' ladder (you can fall and break your neck changing a light bulb), under a car (please use jack stands), or anywhere else. I know sometimes we all thing we are only turning on the tool for a sec, or we are better than that, but, crap happens, and we are not bullet proof, all the time. And you cain't work hurt.
Be Safe!