David Chalk wrote:
Even with Tanto Jiyu Wasa with a real knife - you are only trained to deal with the sort of attacks a unskilled attacker would use, committed stabs, slashes, etc.
If your attacked is skilled with a knife, I very much doubt you would see it at all.
I agree. If they show you it then normally thats to intimidate you. Maybe as a persuader to give up your wallet or to back you down.
If its a serious attempt to harm you theres no mileage in waving it around to let you know that its on its way.