The one that divides my left eyebrow. I was about 5 or 6, in WalMart. Being the little kid I was, I was of course playing on the buggy. (That's a 'shopping cart' for you non-hicks) I was standing on the rail that runs across the bottom with one foot, and pushing with the other foot. Well, too bad for me, my foot slips. (BTW, for future reference, we're in the towel section) I go down, head hits the wheel guard, an schpltt, my head is cut open. Mom grabs a towel, runs out screaming "I'll come back and pay for it!!", and off we go to the doctor, who at that time was on the other side of the parking lot.
Tons of stitches, lots of pain, and a permanent memory of that have made me somewhat more careful. Oh, did I mention I'm now 20/250 vision in that eye?
Yeah, bad deal.
Where do you work?