I know a lot of quilters who sew barefoot and it makes me nervous. One of the quilters in my old guild ended going to the hospital to have a pin removed. It had entered in her foot and traveled up to her back.
I also have to remember to move my hand away from the needle when I'm sewing. I have become one with a couple of my machines, including my Innova. I try to use a stiletto to guide the fabric in my DSMs, but it's a little hard with the LA. Luckily, none of these incidents required a visit to the ER.