I'm just saying, they're not that deadly, and you've provided no evidence they are. Your orginal assertion was more lethal than a burst of machine-gun fire. Now we're down to 'more lethal than a pencil'.
You're carrying things to the absurd.
Yes. Using your logic, it is amazingly easy to do. If the same logic you use to prove ninja use shuriken also proves they use clogdancing and cranes, there's probably something wrong with the logic.
If you're going to say that ninjas didn't use them, I challenge you to produce conclusive evidence proving as much.
Okay, if I ever say ninja didn't use them (as opposed to saying there's no real evidence they did) I'll remember you want me to prove a negative. Right after you prove they never wore clogs, of course. Good luck with that.