When I was about seven or eight, I was hopping down our hallway and tripped. I fell straight down on an old nail, and, the top round part (not the pointed nail part) went into my knee. It wasn't fun. I don't remember what we did for it, but, I know I didn't get stitches. I don't even remember if I went to the doctor. I have a scar there, but, it's not terrible. That sounds really painful, especially that your dad pulled it out! scary!