
Wow, that is an amazingly dumb thing to do.
Also, that was pretty gross.
And that, ladies and gentlemen, is why ORM exists. What a bonehead!My right thumb looked like that on the 4th of July last year. I was cleaning my motorcycle chain, it was up on a rearstand, running to warm up, in neutral - and my friend accidentally kicked it into gear. Needless to say, no more trimming my right thumbnail.

It's the gay "thumbs forward" grip they're using so much nowadays in IPSC competitions...