Sometime before I was 8 yrs old I had stepped on a needle and my Mom had to pull it out. It had lodged in the arch of my foot. I had a scar and once in a while it would feel like I had a charlie horse in the arch. I started to grow a callous on that spot and when I was about 12 or 13 the callous got really big, so we put a callous patch on it to get rid of it. When the skin got soft enough to remove, up through the skin came about 1" of the eye end of the needle. It was black and had been in my foot for at least 4-5 years!