I can imagine how you feel. Back in my highschool days I worked the drivethru booth at a fast food shop. I pulled a reciept off of the register and wound-up to throw it out of the booth into the garbage can across the way. Wouldn't you know it, I caught my nail on the doorway.
The darn thing buckled over on itself with a healthy chunk of skin attached to side that was now staring me in the face. I went to my manager to see if that got me off the hook for working that night. No dice. With a very satisfying "SNAP" sound, I flicked the nail back into position and went back to work without much pain until it was time to wash dishes...