So, yeah, I learned something today.
I learned that its possible to hit your hand on your chainring so hard, that the individual sprockets will pierce your fingernails and make your fingers bleed. I did not know that was possible, until I did it.
I was taking the pedals off my second bike and didn't feel like putting it on the workstand. The DS pedal was on pretty tight and as I worked to get it off, the pedal finally let loose and I slammed my hand into the crankset. I now have three black cuts on my fingers - two through the fingernails.
It was not a good feeling.