I have had the honors of getting stitches also. I was cranking up a .60 on my aeromaster when it died when i got to the runway. So I put the nicad back on it and tried to flip it with my hand (just to darn lazy to get elec starter) when it backfired and sliced the tip of my middle finger off to the side.

The best part about it is that I had to pack up and head to the ER to get it stitched. I was in such a hurry to get loaded back up I got some fuel in my newly cut finger. My eyes rolled back into my head as I became weak on my feet.

Ended up getting a ride to ER after that.