Years ago, while moving in to a new apartment, we were unloading boxes and I had my DDs pushing the boxes into a pile to make room for more boxes. All of a sudden my oldest DD lets out a horrible scream and starts slapping her knee. She thought she got stung, but when I looked, she had a long piece of thread coming out of her knee! Off to the ER and and an Xray, to discover a sewing needle was completely imbedded in her knee behind her knee cap, eye first! The surgeon was able to remove it, and no infection, but I never put my needles anywhere but in my needle holder! Ever! My needle holder is a square of needlepoint plastic 5"x5" that I have completely covered in a bright colored craft yarn. I mark the top, and only insert the needles in from the top, and only needles with at least a short thread tied to them. Made a huge impression I can tell you.