Yep! Leaving for band practice, carried my gear out of my front door, bass on back, cab infront of door. I lean over the cab, resting my hand on the doorframe and pull the door shut to lock it...
Hear crunching noise, look at my thumb... now trapped in the shut door (hinge side) halfway down my thumbnail.
My thumb pretty much doubled in size, the nail filling with blood but I was determined to go to practice. 3 hours of practice later my thumb is absolutely throbbing and now a rather horrific shade of red/black (worth noting I'm a pick player and this was my picking hand). They needed to pierce my thumbnail with a red hot needle to release the blood, typically in going through the thumbnail they managed to drive said needle into my nail bed at the same time.
The pressure of the built up blood in my thumbnail was so high by this point that the blood managed to easily cover a distance of around 4-5m as the needle released it.
That wasn't a great deal of fun! How the hell I didn't break my thumb I'll never know!