>Or all our tools can be weapons.
Absolutely. I remember for a while when I flew, back when you had to check in, they would ask if I had "anything that could be used as a weapon". I always answered "no" while I thought, "anything can be used as a weapon..." The one attack with a weapon I remember when I was a kid was one kid stabbing another with a sharp pencil... despite the fact that both kids had a knife in their pocket...