I had quite a day. I was working on getting the nut off a guitar I was repairing. I used an exacto knife to separate the glue, and the blade got stuck. Then I pulle dit out by the handle, and the blade stayed in the guitar. Then I grabbed the headstock, and pulled out the blade. It sliced the knuckle on my thumb. And boy it hurt. Bled like crazy, too!! I went to the emergency room, and waited for 3 hours to get any REAL help. Then the doctor came in, and shot a bunch of lidocaine in the sore. WOW, THAT WAS PAIN! It swelled up huge. then it numbed, and then he went to work on it. He cleaned it, prodded it, and found out that I hit bone. I damaged the tendon. Actually cut it. So I might have to get permanent stitches in the tendon. But luckily it was the extensor tendon, and it doesn't require a whole lot of strength. Also, i have a splint on, and i can actually still play bass with it! I'm happy! That I can still play, at least.