... they're really sharp.
In all seriousness, I've learned a new heightened level of respect for the Exacto knife, particularly the standard pointy blade that comes with most knives.
I jabbed my middle finger of my non-cutting hand, right on the knuckle, and then did the same exact thing a couple hours later but to the knuckle of the thumb on my non-cutting hand. Fool me twice, I'm a freaking idiot, or ... how does that go again? These tiny puncture wounds hurt like heck and took days to heal.
Of course we all know they are sharp, but I guess I needed to take a step back and remember, they are REALLY sharp. I now approach it like I'm using a power tool, which for a desk jockey like myself is a caution zone. So I thought I'd provide this public service reminder!
There are several Exacto knife / utility knife safety pamphlets online, and you may want to look them up, but some pointers I've read are:
*be sure to keep the "line of fire" clear, i.e., the path the knife will go if/when it breaks through the material you are cutting
*try to cut in a direction away from yourself
*use a clamp or vise to hold the object if possible
*if you have to hold the object try to hold it behind the line of fire
*don't use dull blades
*don't use the knife for tasks other than cutting
*store the knife with a cover and in a safe location.
*try to use the least dangerous blade that can get the job done (e.g., the rounded carving blades are less dangerous because they don't have the pointed tip)
Glad to report I was able to type this with all 10 fingers.