I don't want to jinx myself, but I've managed to keep the blood off the quilts, mine and my customers! I do probably need to refill the bandage box. It usually happens on custom quilted quilts, where I use pins to keep things in place while I work my way around on the quilt. I don't have to use pins for the pantograph work. No blood there!
One of the ladies managed to cut herself with a rotary cutter and had to have stitches. I happened to miss that day!