Are you sure about this? A friend hit me with a pencil 5 years ago, and this caused some graphite to enter inside my skin. The graphite is still there to date and I got no pain, infection, reaction from it.
Keep in mind that the top 2mm of your skin is mostly dead material. Nothing will happen if you put something into it, and there are places where it doesn't get renewed.
Are you sure about this? A friend hit me with a pencil 5 years ago, and this caused some graphite to enter inside my skin. The graphite is still there to date and I got no pain, infection, reaction from it.