Ouch! I cut myself with a razorblade today. I make epoxy mounts in these tiny plastic molds, and you need to cut them open to get the mount out of them. Needless to say, I slipped. You can barely see it, but it's about 1-2 mm deep. You can see it when you pull the skin apart, but that makes it bleed more. I'm gonna go find a band-aid now.