Last night I was using my seam ripper to remove some stitches. I laid it down on my sewing table and knocked it off onto my lap. Natural response without thinking I put my knees together to catch it and it caught between my legs. I stabbed the inside of my leg badly. Managed to stop the bleeding finally with my husband's help. I was lucky I didn't get the main artery in my leg. Sure hurt. I won't do that again.