My thumbnail got slammed in a car, door, and nearly came off, but instead, it stayed on , and got infected under there. A large pocket of pus formed under my thumbnail, and the doctor had to get it out somehow. he heated up a pin redhot, and burned a hole through the nail. when the redhot pin got through the nail, it hit the super-tender, nerve-filled, never-see-the-light-of-day, flesh under the nail and it hurt like hell. That was the most intense pain I have ever experienced, but luckily, it lasted only a few milliseconds....
Anyway, seeing the pus come out after that was the second most painful thing, lol.