I really do need to be more careful with my razor knife. Well, I was careful enough to keep my fingers out of the way anyway.
I was cutting an empty box down so it would fit into a shopping cart and my blade just slipped outta the box... and into my arm.
There're two dissolvable stitches inside to keep the gaping thing closed. It was pretty interesting seeing the fat in there. My manager looked like he wanted to throw up though.