I did a jobbie on my dominant hand thumb the other day. Stuck it into a 10" prop that was on it's way to 12K rpms. This picture is after 36 hours, with liberal use of triple antibiotic, and the bleeding finally stopped:
(picture obscured for the benefit of the squeamish)
It's better today, but I may lose some flesh around the nail. It got undercut pretty bad and looks a bit darker in places now. Remember boys and girls, when calibrating the ESCs on an RC multirotor, ALWAYS remove the props first. Props have wicked nasty razor-sharp teeth you can't see. Always remove the props. @#$%!
Still not as bad as when I split my left index open in two places with a framing hammer. I don't even remember the next few hours after that one except in shades of red. That
really hurt.
Sorry if I harshed anyone's buzz.