Once (back in the heparin lock, pre needle-less system days) I sat down next to my patients bed to start her IV and place a Heparin lock. I placed the catheter and the cap. Uncapped my Heparin flush syringe and promptly dropped it on my lap. It slipped from my hand and as I went to catch it the plunger end hit my thigh, the needle was straight up, my hand came down on the needle...impaling my pinkie finger and simultaneously injected the Heparin flush into my finger.
So there was with a syringe of Heparin hanging out/off of my hand and it hurt like crazy but I was trying to maintain my dignity by remaining cool. So I was like "whoopsie..haha, well that's no good". I had to un-impale myself, hold pressure and try and get a new flush ready to flush that waiting newly started iv. My finger ended up with a hematoma as you can imagine because of the Heparin. It was a long night.