I put the box cutters down and started trying to pull out the expanded-in-place foam packing. It gave suddenly and I, lucky person that I am, managed to find a sharp little burr on the metal of the part I was trying to free. I now have a 2 inch slice along the top of my right index finger. (the burr was so sharp, I still don't feel the slice. Actually, I don't quite understand that part. It really should be hurting by now....)
But not from the box cutter. I get points for that, right?