The worst for me was a veggie chopper blade. I picked up the veggie chopper, took off the cup thingie from the bottom and hit the button to turn it on. The blade flew out and stuck vertically in my foot. We pulled it out and it bled for hours. Probably should have hat stitches, but oh well. Interesting thing is, we couldn't get it to heal for anything. Turns out, I kept the cut too clean.