Ouch! When I first began using a new machine, I hit the wrong button when I leaned around my machine. Instead of hitting the bobbin wind button, I hit the cut thread button. Oh boy, was that painful. The needle went all the way through my index finger and broke into two pieces when it hit the bone. I came in and gave my husband the needle nose pliers to pull the needle out. He was able to to pull the part that came out of the fingernail, but when he tried to pull the other end he kept pinching me with the end of the pliers. Finally, I took the pliers and pulled it out myself. I was lucky that I had just put in a new needle and so it was clean. It healed fine, but it was sore for more than a few days.