I don't know if this beats that or not but when I was a kid I managed to hit myself in the face with a baseball bat.....got my very first black eye from it too! lol
We were playing at the park and using upturned bikes as bases.....after hitting the ball quite far but not far enough to run on, I was waiting for the ball to get back to the pitcher and started dropping the bat on the upturned bike tyre.....not suprisingly it bounced.....so I let it drop from higher and it bounced a little higher....then used a little downward force to see if it'd bounce higher....then a little more and then whacked it.....it bounced very well....and right back into my face! lol
Still I learned a good lesson that day.....not to hit rebounding things with heavy things when your head's in the way! lol
Hope your eye is better soon Tengu..... I'm forever getting saw dust and stuff in my eyes at work, I've had to go to A&E to have my eyes flushed several times and I think I can safely say that of all types of pain humans can feel......eye pain has to be the most exquisitly painful there is!
Cheers,
Bam.